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.

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)

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)