Suitable for secondary development, online monitoring of loop grounding resistance and metal loop connection resistance, grounding condition monitoring. 1. Model No.: ETCR2800T 2. Measurement Range: 0.01Ω～100Ω； 3. RS485 communication protocol(support MODBUS) 4. Output Range : 0.00Ω～100Ω 5. Accuracy: ±2%rdg±3dgt (20℃±5℃，below 70%RH). 6. Power Supply: 6VDC～9VDC，50mA Max.（External power supply）

Large-Scale Grounding Grid Earth Resistance Tester used to measure the grounding impedance or resistance of large grounding devices, measure the conduction impedance or resistance between grounding devices, measure the soil resistivity, and measure the simple step voltage. 1. Model No.: ETCR3300B 2. Impedance Range: 0Ω~200Ω 3. Max. Current Output: 5A 4. Max. Voltage Output: 400V 5. Test Current Frequency: Auto 45Hz/55Hz 6. Power Supply: AC220V±10％, 50Hz/60Hz

Precise3/4-wire,simple 2-wire method to measure earth resistance, soil resistivity, earth voltage. 1. Model No.: ETCR3100C 2. 2/3/4-pole 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 7.4V 2600mAh rechargeable lithium battery, full charge about DC 8.4V

Precision 3-wire, simple 2-wire method to measure earth resistance, earth voltage and low resistance. 1. Model No.: ETCR3000C 2. Earth resistance measurement, Range: 0.010Ω~2000Ω 3. Earth voltage measurement,Range: AC 0~600V 4. Data storage: 400 sets 5. Alarm function: audible and visual alarm 6. Power Supply : DC 7.4V 2600mAh rechargeable lithium battery, battery charge full about 8.4V

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 )

Adopt2-wire method, 3-wire method to measure grounding resistance,grounding current, grounding voltage 1. Model No.: ETCR3000+ 2. Earth Resistance Range: 0.10Ω ~ 2000Ω 3. Grounding Current Range : 0mA ~ 100A AC 4. Grounding Voltage Range : 0 ~ 200V AC 5. Data Storage :1000 groups 6. Power Supply : DC9V, R6 AA dry batteryX6PCS

Adopt2-wire method, 3-wire method to measure grounding resistance,grounding voltage. 1. Model No. : ETCR3000A+ 2. Grounding Resistance Range : 0.10Ω～2000Ω 3. Grounding Voltage Range : 0～200V AC 4. Display LCD: LCD:58mmX46mm 5. Measurement Tim : Earth resistance: 15 seconds/time;Voltage to earth : 2 times/second; Current: 2times/s 6. Power Supply : DC9V, R6 AA dry batteryX6PCS

Digital Earth Resistance Tester is applied to Precision 3-wire, simple 2-wire measurement method of earth resistance, voltage to ground measurement. With unique function of wire resistance verification, anti-interference capability and Environmental adaptability, more accurate for grounding resistance measurement. 1. Model No.: ETCR3000 2. Earth Resistance Range: 0.010Ω~2000Ω 3. Earth Voltage Range: 0V~600V AC 4. Accuracy: ±2%rdg±3dgt 5. Measurement Method:Rated current change-pole method/Average value rectification 6. Power Supply: DC 9V (Alkaline dry battery LR14 1.5V 6 PCS )

Online monitoring of grounding resistance, grounding voltage. 1. Model No.: ETCR2900B 2. Ground resistance ：0.01Ω～2000Ω 3. Communication method ：RS485 or GPRS 4. Monitoring Interval Time :Setting range of automatic monitoring interval time :1-999 h 5. Measurement rate：over 10000 times 6. Power Supply : Standard：12V - 24V (±1VDC)、400mA Max（provided externally）

Online monitoring of grounding resistance, grounding voltage. 1. Model No.:ETCR2900 2. RS485 communication protocol(support MODBUS) 3. Measure Range: 0.010Ω~2000Ω 4. Ground Voltage : 0~600V AC 5. Online detection and real-time monitoring, LCD: 124mm×67mm 6. Power Supply : Standard:12V±1VDC, 400mA Max. Optional: 24V±1VDC (provided externally)

Double Clamp Earth Resistance Tester applied with precise 4-pole, 3-pole and simple 2-pole method, selection method, double clamp method for grounding resistance measurement, The measurement of earth resistance, soil resistivity, earth voltage, AC voltage, grounding lead leakage current, AC current, DC resistance. 1. Model No.: ETCR3200 2. Erth resistance,Range：0.00Ω～30.00kΩ 3. Soil resistivity Range：0.00Ωm～9000kΩm 4. Test Frequency: 128Hz/111Hz/105Hz/94Hz(AFC) 5. Short-circuit Current:AC 20mA max 6. Power Supply:DC 9V (Alkaline dry battery LR14-1.5V )

Suitable for secondary development, online monitoring of loop grounding resistance and metal loop connection resistance, grounding condition monitoring. 1.Model No.:ETCR2800N 2. Measure Range: 0.010Ω~100Ω 3. Equip with RS485( support MODBUS-RTU communication protocol) or GPRS interface 4. can be built into inside case of other equipment ,convenient the secondary development and integration by users 5. Network system can be built to realize real-time detection and remote monitoring 6. Power Supply : 6VDC~12VDC, 50mA Max.(External power supply, optional GPRS 12VDC 150mA Max)

On-line monitoring of loop grounding resistance and metal loop coupling resistance, and grounding condition monitoring. 1.Model No.:ETCR2800KC 2. Measure Range: 0.010Ω~100Ω 3. No need to disconnect the grounding down lead and no need with auxiliary electrodes 4. Rain and dust proof, can be installed and used in outdoor 5. 47mmX28.5mm LCD 6. Power Supply : 6VDC~12VDC, 50mA Max.(External power supply, optional GPRS 12VDC 150mA Max)

On-line monitoring of loop grounding resistance and metal loop coupling resistance, and grounding condition monitoring. 1. Model No.:ETCR2800KB 2. Measure Range: 0.010Ω~100Ω 3. No need to disconnect the grounding down lead and no need with auxiliary electrodes 4. Rain and dust proof, can be installed and used in outdoor 5. Network system can be built to realize real-time detection and remote monitoring 6. Power Supply : 6VDC~12VDC, 50mA Max.(External power supply, optional GPRS 12VDC 150mA Max)

On-line monitoring of grounding resistance and metal loop coupling resistance, grounding condition monitoring 1. Model No.: ETCR2800C 2. Test Mode: Non-contact type 3. Communication Mode: RS485 or GPRS communication (optional) 4. Resistance Range: 0.01Ω~200Ω; 5. Accuracy: ±2%rdg±3dgt(20℃±5℃,Below70%RH) 6.Power Supply: 6VDC~12VDC, 50mA Max.

Non-Contact Earth Resistance On-line Detector, on-line monitoring of grounding resistance and metal loop coupling resistance, grounding condition monitoring 1. Model No.: ETCR2800B 2. Test Mode: Non-contact type 3. Communication Mode: RS485 or GPRS communication (optional) 4. Resistance Range: 0.01Ω~200Ω; 5. Accuracy: ±2%rdg±3dgt(20℃±5℃,Below70%RH) 6.Power Supply: 6VDC~12VDC, 50mA Max.

Earth resistance measurement, loop resistance measurement, grounding down leads leakage currentmeasurement, judge groundfault. 1. Model No.: ETCR2100C+ 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)

Earth resistance measurement, loop resistance measurement. 1. Model No.:ETCR2100A+ 2. Resistance Measure Range: 0.010Ω~200Ω 3. Data Storage: 99 sets 4. Alarm Threshold Setting: 1-199Ω 5. Alarm Function: audible and visible alarm 6. Power Supply : 6VCD ( 4 PCS of No.5 LR6 Alkaline dry batteries)

Clamp Earth Resistance Tester applied to earth resistance measurement, loop resistance measurement. no need to disconnect the grounding down leads, no need auxiliary electrode, saving time and more effect. 1. Model No.: ETCR2100+ 2. Measure Range: 0.010Ω~1200Ω 3. Data Storage: 99 sets 4. Alarm Threshold Setting: 1-199Ω 5. Alarm Function: audible and visible alarm 6. Power Supply: 6VDC ( 4 PCS of No.5 Alkaline dry batteries)

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