Function:Ground resistance test, Loop resistance test 
Power Supply:6VDC 4 PCS of AA Alkaline batteries
Resistance Range:0.01-1200Ω
Resistance Resolution:0.001Ω
Highest Resistance Accuracy:±1%±0.01Ω
Data memory:99 Sets 
Alarm Threshold Setting Range:Resistance→1-199Ω
Alarm Sound and Light: “Beep-beep-beep” alarm tone, Alarm Symbol Flashing, Press                 

       AL key to turn on, turn off Alarm or set Alarm Threshold.
Interference Signal Recognition: “Beep-beep-beep” tone, NOISE symbol blinking
Working Temperature and Humidity: -20℃-55℃; 20％RH-90％RH
LCD Screen: 4 Digits LCD display, Screen L×W: 47mm×28.5mm 
Clamp Size: 65mm×32mm
Clamp Opening Extent: 32mm
Tester Weight: 1160g (With batteries)
Clamp Dimension: L×W×T: 285mm×85mm×56mm
Protection Level: Dual Insulation 
Structural Feature: Clamp CT
Shifting: Automatic shifting
External magnetic field: ＜40A/m
External electrical field: ＜1V/m
Single measurement time: 0.5 second
Resistance measurement frequency: ＞1KHz
Measured current frequency: 50/60Hz Automatic measurement
Low Battery Indication: Low battery symbol displays when battery is lower then 5.3V
Memory Full Indication: MEM symbol blinks when all 99 sets memory is full
Over Range Indication: Out of range indication “OLΩ”, “L0.01” or “OL A”
                                            Auto Power-off 5 minutes after Boot up
Power Consumption: Max 50mA either in booting up or normally working, Continuously working for 30 hours
RS232 Interface (Optional): The data stored in the meter are uploaded to the  computer through RS232 interface and data wire, Then generate report files 
Safety Provisions: IEC1010-1, IEC1010-2-032, Pollution level 2, CAT Ⅲ(600V)