Specifications:

Function:Ground resistance test, Loop resistance test
Power Supply:6VDC 4 PCS of LR6 lkaline batteries
Resistance Range:0.01-200Ω
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:-20C-55C20%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: External electrical field: 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