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ETCR Committed To Research & development More Excellent Electric Instruments And Meters.

Ground fault detector
01 ETCR1400 Overhead Line Ground Fault Detector

Overhead line ground fault detector apply for single-phase ground fault detection of overhead high-voltage lines, and accurately locates the ground fault point. Accurately search hidden ground faults of overhead line such as single-phase metallic grounding, arcing grounding, transition resistance grounding, insulator breakdown, and lightning arrester breakdown,etc. 1. Model No.: ETCR1400 2. Detection Method: Clamp CT 3. Output Voltage: 3000V/8000V two gears 4. Output Frequency: 50Hz 5. Communication Mode: Wireless/Bluetooth 6. Power Supply: Host: 14.8V, 5200mAh Rechargeable lithium battery; Detector clamp: 3.7V, 2600mAh Rechargeable lithium battery

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ETCR1500 Wireless High Voltage Phase Detector
02 ETCR1500 Wireless High Voltage Phase Detector

Wireless High Voltage Phase Detector applied to electric power lines below 500KV, high voltage switchgear (metalclad withdraw switchgear, ring main unit, etc.) or substation phase detecting, phase test, phase sequence judgment and electricity inspection, etc. 1. Phase Detection Method: Contract & Non-contact phase detection method 2. Phase Detection Voltage: 10V~500kV 3. Phase Detection Distance: 200m 4. Phase Range: 0°~360° 5. Frequency Range: 45.0Hz~65.0Hz 6. Power Supply: Host: 3.7V, 2600mAh Rechargeable lithium battery;                               Detector: 3.7V, 600mAh Rechargeable lithium battery

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wrist type high voltage approach electric alarm
03 ETCR1860 Wrist Type High Voltage Alarm

Wrist Type High Voltage Approach Electric Alarm, after the operator wears the alarm, and close to the high voltage charged body for a certain distance, the alarm will send out a sound and light alarm according to the  safety distance of the corresponding voltage level to remind the electrical worker to pay attention to safety and avoid high voltage electric shock accident. This product can also be used for line fault detection and electroscope. 1. Model No.: ETCR1860 2. Alarm Voltage Range : 1kV~500kV 3. Electricity Testing Mode : Non-contact mode 4. Detection Mode : Automatic trigger 5. Max. Alarm Distance: 5.5m 6. Power Supply: CR1632(140mAH)button cell

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2000C+ Series Clamp Earth Resistance Tester
04 ETCR2000C+ Clamp Earth Resistance Tester

Earth resistance measurement, loop resistance measurement, grounding down leads leakage currentmeasurement, judge groundfault. 1. Model No.: ETCR2000C+ 2. Resistance Measure Range: 0.010Ω~1200Ω 3. Leakage Current Measure Range: 0.00mA~20.0A 4. Alarm Threshold Setting: 1-199Ω 5. Alarm Function: audible and visible alarm 6. Power Supply : 6VDC ( 4 PCS of No.5 LR6 Alkaline dry batteries)

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3000B Soil Resistivity Tester
05 ETCR3000B Earth Resistance/ Soil Resistivity Tester

Precision4-wire, 3-wire, simple 2-wire measurementmethod to measure earth resistance, soil resistivity, earth voltage. 1. Model No. : ETCR3000B 2. 2/3/4-wire method measure earth resistance,Range:0.00Ω~30.00kΩ; 3. Soil resistivity measurement, Range:0.00Ωm~9000kΩm; 4. Earth voltage measurement,Range:AC 0~600V 5. Data storage: 300 sets 6. Power Supply : DC 9V (Alkaline dry battery LR14 1.5V 6 PCS )

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3200C Series Double Clamp Earth Resistance Tester
06 ETCR3200C Double Clamp Earth Resistance Tester

With 4-wire method,3-wire method and simple 2-wire method, selection method, double clamp methodto measureearth resistance,DC currentsoil resistivity,earth voltage, AC voltage,grounding lead leakage current. 1. Model No.: ETCR3200C 2. 2/3/4-wire method measure earth resistance,Range: 0.00Ω ~ 30.00kΩ 3. Selection method meausre earth resistance, Range: 0.00Ω ~ 3000Ω 4. Doule clamp method measure earth resistance,Range: 0.00Ω~100Ω 5. Soil resistivity measurement, Range: 0.00Ωm ~ 9000kΩm 6. Earth voltage measurement,Range: AC 0.0 ~ 100.0V

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High Voltage Insulation Resistance Tester 5KV
07 ETCR3500 High Voltage Insulation Resistance Tester

Suitable for insulation resistance testing of cable, motor, generator, transformer, mutual inductor, high voltage switch, arrester and other large equipment. Insulation resistance test (IR); polarization index test (PI); Dielectric absorption ratio test (DAR); Step test(STEP); Ramp test (RAMP).AC/DC Voltage test(V). 1. Model No.: ETCR3500 2.. Rated Voltage: 50v~5Kv 3.. Insulation Resistance Range: 0.005MΩ~5.00TΩ 4. Voltage Range: DC 0~800V;AC 0~700V 5. Output Short Circuit Current: ≥5mA MAX 6.Power Supply: Rechargeable lithium battery pack 5200mAh

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three-phase digital phase voltage ampere Voltammeter
08 ETCR4300 Three-phase Digital Phase Voltammeter

Three-phase Digital Phase Voltammeter in the case of the tested circuit is not open-loop, Measuring three-phase AC voltage, current, phase between voltages, phase between currents, phase, frequency, phase sequence, active power, reactive power, apparent power, and power factor between voltage and current. 1. Model No.:ETCR4300 2. Current Range:  AC 0.0mA~20.0A 3. Voltage Range:  AC 0.00V~600V 4. Phase Range:  0.0°~360.0° 5. Frequency Range: 45.00Hz~65.00Hz 6. Power Supply: DC9V Alkaline battery (LR6 1.5V AA×6)

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9000 series H/L voltage clamp current meter
09 ETCR9000B Wireless H/L Voltage Clamp Current Meter AC 0mA~1200A

Applied to high / low voltage AC current measurement below 110kV (operated with insulation rod above 600V). 1. Model No.: ETCR9000B 2. Current Range: AC 0mA~1200A 3. Resolution: 1mA 4.Communication Mode: Wireless, transmission distance 30M 5. Line Voltage: Current testing below 110kV , operate with insulation rod 6. Power Supply: 6VDC (LR03 × 8pcs alkaline dry batteries)

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ETCR Will Develop & Manufacture More Good Quality, Diversification, High Accuracy Electric Instruments And Meters. Welcome To OEM & ODM.

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New Products

ETCR Will Always Move Forward, Exploring & Developing The Latest And Best Electric Instruments And Meters.

  • Ground fault detector
    ETCR1400 Overhead Line Ground Fault Detector

    Overhead line ground fault detector apply for single-phase ground fault detection of overhead high-voltage lines, and accurately locates the ground fault point. Accurately search hidden ground faults of overhead line such as single-phase metallic grounding, arcing grounding, transition resistance grounding, insulator breakdown, and lightning arrester breakdown,etc. 1. Model No.: ETCR1400 2. Detection Method: Clamp CT 3. Output Voltage: 3000V/8000V two gears 4. Output Frequency: 50Hz 5. Communication Mode: Wireless/Bluetooth 6. Power Supply: Host: 14.8V, 5200mAh Rechargeable lithium battery; Detector clamp: 3.7V, 2600mAh Rechargeable lithium battery

  • 1560A Series Multifunctional Satellite Remote Wireless Phase Detector
    ETCR1560A Multifunctional Satellite Remote Wireless Phase Detector

    Applied toremote and shouting distancephase detecting, phase testing, phase sequence judgement and electrictity testing of the high voltage line,metalclad withdraw switchgear and ring main unit and others occasion. 1. Model : ETCR1560A 2. Phase Qualitative: Same phase:-20°~20°;Out of phase: 100°~140° and 220°~260° 3. Phase Range & Accuracy : 0°~360°;Accuracy:≤±8 ° 4. Frequency Range & Accuracy: 45.0Hz~65.0Hz;Accuracy:≤±2Hz 5. Transmitting Frequency : 433MHz, 315MHz 6. Host Power Supply : 3.7V, 2600mAh Rechargeable lithium battery

  • ETCR1840 alarm
    ETCR1840 Water Proof Approach Electricity Alarm

    When approaching the electrified object, the alarm will be triggered at a safe distance to remind the operators to pay attention on safety, avoid electric shock accidents, which provide safer guarantee for the workers working near the electricity. 1. Model : ETCR1840 2. Power Supply : Rechargeable lithium batteryDC 7.4V 600mAh 3. Alarm Voltage Rnage:Low voltage : 40V~1kV; Hight voltage:1kV~500kV 4. Alarm Mode : Vibration, light, buzzer 5. Protection Level : IP67 6. Electricity Testing Mode : Non-contact type

  • ETCR1900
    ETCR1900 High Voltage Operation Anti-touch Smart Early Warning Device

    High Voltage Operation Anti-touch Smart Early Warning Device provide an intelligent high voltage close to electrical alarm device for electric working vehicles. When the working vehicle closing to the high-voltage transmission line for a certain distance, the device will send out an alarm signal to remind the operators that the equipment is closing to the high-voltage power, should pay attention to the danger, avoid the crane arm of the working vehicle touch the high-voltage transmission line, and protect the safety of the workers and power facilities. 1. Model : ETCR1900 2. Power Supply : Sensor: DC 7.4V, 2600mAh; Receiver: DC7.4V,2600mAh 3. Electricity Testing Range : 1kV~500kV 4. Wireless Transmission Mode : 230Mhz 5. Wireless Transmission Distance : 200m(In the open environment)

  • etcr2000XC earth resistance meter
    ETCR2000XC Clamp Earth Resistance Tester

    Earth resistance measurement, loop resistance measurement,grounding down leads leakage current measurement, judge ground fault. 1. Model: ETCR2000XC 2. Resistance Range: 0.010Ω-500Ω 3. Current Range: 0.00mA -20A 4. Clamp Size: 55mm×32mm 5. Data Memory: 500 groups 6. Power Supply: DC: 6V ( 4 PCS of LR6 Alkaline batteries)

  • ETCR3250 TESTER
    ETCR3250 Pylon Earth Resistance/Resistivity Tester

    4-Clamps method measure pylon earth resistance; 2-wires,3-wires,4-wires method meausre earth resistance; Soil resistivity measurement; AC current measurement; Earth potential(earth voltage) measurement. 1. Model : ETCR3250 2.  Earth Rsistance Range: 0.00Ω~20.00kΩ 3. Soil Resistivity Range: 0.00Ωm~9000kΩm 4. AC Current Range: 1.00mA~500.0A 5. Earth Potential (Voltgae) Range: 0.0V~200.0V 6. Power Supply : DC7.4V  5200mAh rechargeable lithium battery, full charge about 8.4V

  • ETCR3350 series
    ETCR3350 Large-Scale Grounding Grid Earth Resistance On-line Monitor

    Used for online monitoring the earth resistance, earth continuity, soil resistivity, step voltage, contact voltage, surface potential gradient, etc. of large-scale grounding devices. 1. Model : ETCR3350 2. Impedance Measurement Range : 0.000Ω~200Ω 3. Resolution : 0.001Ω 4. Maximum Current Output : 5A 5. Maximum Voltage Output : 400V 6. Power Supply : AC220V±10%, 50hZ

  • Multichannel Insulation Resistance On-line Monitor Recorder
    ETCR3580 Insulation Resistance On-line Monitor

    Insulation Resistance On-line Monitor apply for online monitoring the insulation resistance value of various electrical equipment and insulation materials such as cables, motors, switches, electrical appliances, etc.. 1. Model No.: ETCR3580 2. Rated Voltage: 500V 3. Insulation Resistance Range: 0.1MΩ~10GΩ 4. Communication Mode: Manual operation or RS485 remote 5. Circuit Loop Quantity:1~8 Channel 6. Power Supply: DC 12V (External power supply)

  • DC Current Resistance Tester Series
    ETCR3660 DC Current Resistance Tester(Microhmmeter 10A)

    Used for measuring transformer winding resistance, conductor DC resistance, cable length,etc. 1. Model No. :ETCR3660 2. Range : 200.0uΩ~50.00KΩ 3. Test Current :10A,5A, 100mA, 10mA, 2mA,  Automatic 4. Max Test Current : 10A 5. Measurement Method : Precision 4-wire method, 2 chennal A/D detecting simultaneously 6. Power Supply : DC 22.2V 5200mAh rechargeable lithium battery

  • ETCR3670 Transformer winding resistance meter
    ETCR3670 Transformer DC Resistance Tester

    Used for fast measurement of various transformer windings DC resistance and conductor DC resistance measurement. 1. Model : ETCR3670 2. Measurement Range : 1.0uΩ~50.00kΩ 3. Test Current Gear : AUTO,10A,5A,1A,100mA,10mA,1mA 4. Output Voltage : 24V MAX 5. Display Mode : 5 inch colorful touch screen 6. Power Supply : AC 220V/Built-inrechargeable lithium battery DC22.2V 5200mAh

About Us
Company Profile Thank you for visiting our website. ETCR Electronic Technology CO.,Ltd. was established in 2006, the factory is located in Guangzhou Guangdong ,South China .It is a state-level high-tech enterprise specialized in producing non-contact and intelligent electronic measuring instruments. The products can be widely used in the power system, petroleum, chemical engineering, telecommunication, meteorology, military,railway, industrial and mining establishments. ETCR is a main and leading manufacturer of earth tester in china, it's main product of earth resistance tester etcr2000 produced in 1999 is the first product in the field of testing instrument in China. ETCR has strong research and development ability. Our R&D department is run by Chinese most leading experts in the field with many years of experience in the manufacturing and design of earth resistance tester and equipments. ETCR involved in the formulation of PRC’S Metrological Verification: JJG1054-2009. And the Metrological Verification JJG1054-2009 was released on December 22, 2009 release, implemented on January 11, 2010. The release of the statute means ETCR made a significant contribution to the earth resistance test industry, ETCR also received " Clamp Earth Resistance Meters " national utility model patent, Patent No. 【ZL 2006 2 0058986.9】. These are confirmed ETCR have strong technical strength and leading position in the industry. To meet the high technical demands of customers, ETCR never stop it's research, we are brewing to make out more new high-tech products. Professional, Responsible, Reliable Protection
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    TaoTronics, a flagship brand under the Sunvalley Group. Our smart products aim to truly benefit our consumer’s daily lives. Offering them an experience they can’t get anywhere else

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Electric Product & Industry Information

  • [Corporate News]ETCR2000B+ Explosion Proof Type Clamp Earth Resistance Tester passed explosion certification-Explosion proof certificate number: CE23.3879
    31Jan
    [Corporate News]ETCR2000B+ Explosion Proof Type Clamp Earth Resistance Tester passed explosion certification-Explosion proof certificate number: CE23.3879

    ETCR2000B+ Explosion Proof Type Clamp Earth Resistance Tester, manufactured by Guangdong ETCR Electronic Technology CO.,Ltd, has passed ATEX lately and met the requirement of GB3836-2010 “Electrical equipment for explosive gas environment” , which explosion-proof mark is Ex ia Ⅱ BT3Ga, explosion proof certificate number is CE23.3879, can be used in corresponding flammable and explosive environment. ETCR2000B+ Explosion Proof Type Clamp Earth Resistance Tester is widely used in electricity, telecommunication, meteorology, oil field, construction and industrial electrical equipment, etc. for measuring earth resistance and loop resistance. When measuring a grounding system with a loop, not request to disconnect down lead, not request auxiliary grounding electrode, safe and effective. The tester not only can measure earth fault that can not measured by traditional method, but also can be applied to measurement place where can not measured by traditional method. Because the value measured by ETCR2000B+ Explosion Proof Clamp Earth Resistance Tester is the comprehensive value about earth resistance and the resistance of earth down lead. Guangdong ETCR Electronic Technology CO.,Ltd is concentrated on the development and production of intelligent power testing instrument. We adhere to technological innovation and quality first, focus on produce each product. Besides, we are a professional manufacturer of explosion proof earth resistance tester, earth resistance online tester, double clamp earth resistance tester, pylon earth resistance tester and large-scale grounding grid earth resistance tester. Service hotline: 400-006-008; If you want to look up more information about us, please click the link of website:www.etcrmeter.com.

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  • [New Product] ETCR1840 Water Proof Approach Electricity Alarm-With triple alarm function of buzz, light and vibration
    31Jan
    [New Product] ETCR1840 Water Proof Approach Electricity Alarm-With triple alarm function of buzz, light and vibration

    Guangdong ETCR Electronic Technology CO.,Ltd has published new product lately: ETCR1840 Water Proof Approach Electricity Alarm. The alarm provides a safe, functional and effective new-type approach electricity alarm device to the power operator. The alarm adopts non-contact sensing technology to all-round sense the electric field in the air. When the induced electric field exceeds the threshold, the alarm will trigger function to emit buzz, light, and vibration alarms to remind operator paying attention to safety and avoiding electric shock accidents, which provides safer guarantee for operator. Product Features 1. Non-contact sensing technology, all-round detect electric field in the air and automatic trigger alarm function. 2. The protection grade is IP67 and can be used for electric testing in the water. 3. With triple alarm modes of vibration, light and buzzer. 4. With 2 gears selection of high or low voltage alarm. 5. It can be connected to use with insulation rods. 6. The alarm power consumption is very small, and the standby time is as long as 6 months. Technical Specifications Power Supply Rechargeable lithium battery DC 7.4V  600mAh Alarm Voltage Range Low voltage: 40V~1kV; High voltage: 1kV~500kV Working Frequency 50Hz/60Hz Electricity Testing Mode Non-contact Working Time Continue working (alarm state): around 8 hours Standby: 6 months Alarm Mode Vibration, light and buzzer Weight     Alarm: 170g (include battery); Total weight: 820g (include accessories) Dimension LXWXH: 111mm×60mm×50mm Insulation Rod Stretch state 1m Protection Level IP67 Working Temperature & Humidity -10℃~40℃; below 80%RH Accessories Alarm: detector 1 PCS; Install Insulation Rod: 1 PCS; Charger: 1 PCS; Tool Bag: 1 PCS Guangdong ETCR Electronic Technology CO.,Ltd is concentrated on the development and production of intelligent power testing instrument, also is a manufacturer of high or low voltage approach electricity alarm, wrist style approach electricity alarm, shoulder style approach electricity alarm, safety helmet approach electricity alarm, wearable approach electricity alarm, water proof approach electricity alarm and non-contact approach electricity alarm. Service hotline: 400-006-008; If you want to look up more information about us, please click the link of website: www.etcrmeter.com

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  •  Field Test - ETCR9400 Zinc Oxide Arrester Electrified Tester
    06Sep
    Field Test - ETCR9400 Zinc Oxide Arrester Electrified Tester

    Zinc oxide arrester is to protect all kinds of electrical equipment in the power system from overvoltage damage electrical products, with good protective performance, if zinc oxide arrester leakage, that is, the performance is reduced, can not play a protective role, then the test zinc oxide arrester performance is very important, the main index is zinc oxide arrester leakage current value, How to measure the leakage current value easily and quickly? Today, a simple method is used to test the leakage value with the zinc oxide arrester live tester. Without power failure, without disassembling the equipment, the leakage current value of the zinc oxide arrester can be detected by directly clamping the grounding wire of the zinc oxide arrester. The instrument model used is ETCR9400. Lightning Arrester Leakage Test Steps: 1) Check whether the power of the host and the detector is sufficient, less than 50% must be charged 2) Check whether there is an emergency pull ring installed for emergency situation use. 3) Install the detector on the insulating rod interface, the interface can adjust the direction of the clamp jaws of the detector to facilitate the clamping-on the wire. 4) Press the "OPEN" button to open the clamp jaws of the detector. 5) Lift the insulation rod and clamp the wire. After confirming that the wire is clamped, press the "CLOSE" button to close the clamp jaws, and the tester will enter the test state. 6) After reading the test value, press "OPEN" key to open the clamp jaws, and let the detector withdrawn from the wire. After removing the insulation rod, press the "CLOSE" key to close the clamp head, remove the detector from the insulation rod, and recover the insulation rod.

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  • Large-Scale Grounding Grid Earth Resistance On-line Monitor
    27Feb
    Large-Scale Grounding Grid Earth Resistance On-line Monitor

    ETCR3350 Large-Scale Grounding Grid Earth Resistance On-line Monitor is used for the online monitoring of large ground network grounding parameters in substations, power plants, microwave stations, communication base stations, etc. The instrument has powerful functions, and can test power frequency grounding impedance, ground on-resistance, soil resistivity, step voltage, contact voltage, potential gradient and other power frequency characteristic parameters. The instrument has unique diagnostic function of grounding pile and connecting line and self-test function to ensure the accuracy of test results. The operation of the instrument is particularly convenient and simple by touching the color screen, and the operation prompts are clear at a sight by clicking the "Help" key. The instrument adopts new frequency conversion AC power supply and microcomputer processing control and signal processing, which effectively solves the anti-interference problem in the test process, simplifies the test operation process, and improves the accuracy and accuracy of the test results. The labor intensity and test cost of test personnel are greatly reduced. The instrument adopts frequency conversion anti-interference technology, with 400V/5A high power output. Product Features 1.Equipped with RS485 interface, the test data can be uploaded to PC or industrial computer to realize remote online monitoring of various grounding parameters. 2. Equip with touch color screen, test function and selection are convenient and easy, and it is very convenient to view test results and historical records. 3. "HELP" button can view the operation method and the wiring diagram clear and obvious. 4. The output current is 1A ~ 5A, voltage is 400V, and adopt the automatic frequency conversion technology and software and hardware filtering technology, which make the tester have high anti-interference performance, test data will stable and reliable. 5. With the function of testing current stake and voltage stake, which is used to diagnose the faults of poor connecting lines and poor grounding of voltage and current stake. 6. With self-checking function, equipped with 0.5Ωstandard resistance, which can self-check the tester at any time to ensure the accuracy of test results. 7. Supports Bluetooth communication of Android system. After installing the APP, can test or view the test results on the mobile. Technical Specification Power Supply AC220V±10%, 50hZ Display Screen 5inch touch colorful screen Impedance Measurement Range 0.000Ω~200Ω Resolution 0.001Ω Measurement Error ±2%rdg±5dgt Soil Resistivity Measurement Range 0Ωm~125kΩm(Depends on resistance measurement range and test length) Soil Resistivity Measurement Accuracy According to the meausrment accuracy of R(ρ=2πaR;a:1 m~100m;π=3.14) Anti-Power Frequency/Voltage Interference Ability 10V(50Hz) Test Current Wave Sine Wave Test Current Frequency Choose one or two frequency points arbitrarily between 40Hz and...

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  • 【Product Upgrade】Clamp Leakage Current Meter
    15Sep
    【Product Upgrade】Clamp Leakage Current Meter

    ETCR6600 series Clamp Leakage Current Meteris specially designed and manufactured for measuring AC leakage current and current. The meter adopts unique CT technology and digital integration technology, has the characteristics of small size, high precision and perfect function. Widely used in electric power, communications, meteorology, railway, oil field, construction, measurement, scientific research and teaching units, industrial and mining enterprises and other fields. Product Features 1. This is a multi-functional new type clamp leakage current measurement meter. 2. The clamp jaw is made of permalloy and magnetic shielding technology, which is almost unaffected by external electromagnetic field and with high measurement accuracy and good stability. 3. The clamp meter with true RMS measurement, filter(band pass filter) function, maximum value / minimum value / average value, harmonics, aberration rate and other test functions. 4. The clamp meter equip with rechargeable high-capacity lithium battery, also has backlight, spotlight, data hold, Bluetooth communication and other functions. Technical Specification Model ETCR6640 ETCR6670 ETCR6680 Range AC 0.00mA~300A AC 0.00mA~1200A AC 0.00mA~2000A Resolution AC 0.01mA AC 0.01mA AC 0.01mA Max Accuracy ±1.5%rdg±5dgt ±1.5%rdg±5dgt ±1.5%rdg±5dgt CT Size Φ40mm Φ70mm 80mm×80mm Meter Dimension 192mm×96mm×40mm 237mm×131mm×40mm 253mm×145mm×40mm Weight 256g 477g 664g Power Supply Rechargeable lithium battery DC3.7V/1000mAh LCD Size 43mm×38mm;display area:36.5mm×29mm LCD Backlight Yes Spotlight Yes Filter Function (Band Pass Filter) Filter open: 40Hz~70Hz; Filter close: 40Hz~1kHz Harmonic Analysis 21times (above 10mA) Distortion Rate Yes (above 10mA) Max/Min Value Yes Average Value Yes Data Hold Yes Overflow Display Exceed measure range overflow function: “OL ” symbol display Bluetooth Communication Yes, can test or view the test results on mobile after install the APP. Automatic Shutdown 5 minutes after power on, will shutdown automatically without any operation to reduce the power consumption. Working Current 60mA (open spotlight 72mA) Line Voltage Below 600V line test Working Condition -10℃~50℃; below 80%RH Dielectric Strength AC 3700V/rms(between the core and shell) Accessories Meter:1PCS; Charger/charge cable:1set; Tool bag:1PCS Current Test When testing the current, try best to put the tested wire at the center of the clamp jaws. If the measured wire deviates from the center position of the jaws, the error may increase by 1% to 4%. Only clamp 1 wire at load current measuring. Shown as follow figure 1. Leakage curent measrent, single phase 2-wire, single phase 3-wir, 3-phse 3-wire, 3-phae 4-wire clamp simultaneously to measure, shown as follow figure 2: Only clamp 1 groudng lead at eath leakae current measuremt, shown as follw fiure 3:

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