Product Name: High Quality 2 Pole/3 Pole/4 Pole Advanced Earth Resistance Tester Model NO.: MS2306 Display: Digital Grade: High Quality Trademark: MS Transport Package: Gift Box Specification: CE Origin: China Product Description Features of Earth Resistance Tester MS2306:* Measurement voltage includes 20V/48V two type choices* 2 Pole/3 Pole/4 Pole earth resistance measurement* Tests soil resistivity by 4 Pole* Current clamps help you easy to do measurement without breaking the ground connection* Automatic frequency control(AFC)is used to indentity interference frequency and select the proper one to reduce the influence of interference voltage* Measures the interference voltage and leakage current with alarm if over limitation* Data logging up to 100groups and USB interface to PCSpecificationsRangeAccuracyMS23063Pole & 4PoleVoltage: AC20V/48VFrequency: 94Hz,105Hz,111Hz,128HzRangeyes94Hz & 128Hz0.1Ω~20kΩ±(5%+5)R~2PoleVoltage: AC20VFrequency: 94Hz,105Hz,111Hz,128HzRangeyes94Hz & 128Hz0.1Ω~20kΩ±(5%+5)RK(CompensationMeasurement for wire resistance)Voltage: AC20V/48V,DC20VFrequency: 94Hz,105Hz,111Hz,128HzRangeyes94Hz & 128Hz0.1Ω~29.99Ω±(5%+5)Short circuit current≤100mASoil resistivityVoltage: AC20V/48VFrequency: 94Hz,105Hz,111Hz,128HzRange:0.02Ωm~1000kΩm ±(5%+5)yes94Hz & 128HzyesNoise voltage rangeNoise frequency rangeNoise current range±1V~±50V DC/AC ±(5%+5)16Hz~400Hz ±(1%+2)200mA~2A ±(5%+5)yesyesUSB2.0 interface100 groups measurement can be memorizedData storageyesProduct weightApprox. 2kg2096g/4.61lbPower supplyLR14(2#)x6; 9V/6F22x1Recharge battery: Ni-MH recharge battery, 7.2VCharger: Input voltage:100V~240V; Frequency:50Hz~60Hz; Output voltage:12V DC 3ADisplayLCD display, with back light, Max9999Product size284*230*125mm/11.2"x9.1"x4.9"Safety ratingCAT III 300V RoHS