Feature: 1. ONLINE MEASURING: Non contact online measurement does not affect the thunder protection grounding effect and the normal operation of the facility, and uses GPRS wireless communication to transmit data, realize remote online monitoring. 2. WIDE APPLICATION: The resistance range is 0.01Ω-100Ω, with a wide range of applications, a single measurement time of about 0.5 seconds, has high efficiency and durability. 3. HIGH PERFORMANCE: The built in sensor and circuit board of the detector are completely closed to ensure high accuracy, stability and reliability of long term online monitoring indoors and outdoors. 4. LCD DISPLAY: The test value is directly displayed by LCD, and the alarm threshold can also be set through the detector, with sound and light alarm indication, no need to set up a network. 5. MULTIPLE USAGES: Suitable for transmission line tower grounding, petrochemical, communication, distribution station grounding, building warehouse, electrical equipment, etc. Specification: Item Type: Online Ground Tester Model: ETCR2800KC Material: PVC Uses: Suitable for transmission line tower grounding; meteorological thunder protection grounding; petrochemical grounding; communication grounding; substation grounding; railway facilities grounding; building warehouse grounding; metal loop resistance; electrical equipment grounding, etc. Functions: Online monitoring of loop grounding resistance, online monitoring of metal loop connection resistance, monitoring of grounding condition CT Structure: Open Close Type Resistance Range: 0.01Ω-100Ω Resolution: 0.001Ω Accuracy: ±2%rdg±3dgt (20℃±5℃, below 70%RH) Overflow Indication: When the test value is greater than 100Ω, the LCD displays the OLΩ symbol Alarm Indication: Detector sound and light alarm and LCD display Alarm Settings: Detector panel key settings, background settings Working Temperature and Humidity: -20℃-55℃; 20%RH-90%RH Temperature and Humidity Error: No more than 5% Shifting: Automatic shifting External Magnetic Field: