Feature:1. The resistance threshold value of sound and light alarm and stored data is 99 units, lower power consumption and easier operation.2. When measuring a grounding system with loops, there is no need to disconnect the ground down conductor, and no auxiliary electrode is needed, which is fast and reliable.3. It is widely used in ground resistance measurement and loop resistance measurement of electric power, telecommunications, meteorology, oil field, construction and industrial electrical equipment.4. It adopts LCD screen and high‑definition digital display, which is convenient to read the measurement results and easy to use.5. Made of high‑quality ABS+iron material, it is wear‑resistant and durable, not easy to damage, and has a long service life.Specification:Condition: Brand NewItem Type: Clamp MeterMaterial: ABS + IronFunctionGround Resistance Test, Loop Resistance TestPower Supply4 x 1.5V AA Dry Battery (Battery Not Included)Resistance Range0.01-1200ΩResistance Resolution0.001ΩData Storage99 GroupsAlarm Threshold Setting RangeResistance: 1-199ΩSound and Light AlarmBeep-beep-beep alarm sound, the alarm sign flashes, press the AL button to turn on, off, and setInterference Signal Recognition FunctionBeep-beep-beep prompt sound, NOISE sign flashing displayWorking Temperature and Humidity-20℃-55℃;20%RH-90%RHLCD Display4-Digit LCD Digital Display, Size: Approx. 47 x 28.5mm/1.9 x 1.1inClamp Mouth DiameterApprox. 32mm/1.3inClamp Meter SizeApprox. 260 x 95 x 68mm/10.2 x 3.7 x 2.7inProtection LevelDouble InsulationStructural FeaturesClamp-on CTGear ShiftFull Automatic Gear ShiftExternal Magnetic Field<40A/mExternal Electric Field<1V/mSingle Measurement Time0.5SResistance Measurement Frequency>1KHzMeasured Current Frequency50/60Hz AutomaticBattery Voltage Low Indication FunctionWhen the battery voltage is lower than 5.3V, the battery voltage low sign is displayedStored Data Full IndicationStored data is full of 99 groups, flashing MEM signOver-Range IndicationOver-range indication OLΩ, L0.01 or OL AAutomatic ShutdownThe meter will automatically shutdown after about 5 and a half minutesPower ConsumptionStart-up, working current is less than 50mA, working continuously for about 30 hours.Package List:1 x Clamp Meter (Battery Not Included)1 x Measuring Ring1 x Aluminium Box1 x Instruction