... -10 ~ 70 ºC ±1.5 ºC ***Special Functions: ♦ USB Interface♦ Measurement of Insulation Resistance for HP Devices (Transformer, Electric ... × 6,Data analysis Software , Temp. sensor, Tester probes , USB cable ,User Manual, Gift Box♦ Optional Accessories: rechargeable battery, ... Technical Specifications:1. Insulation Resistance Measurement: Set test voltage Measuring range Accuracy250 V DC 0.01 MΩ ~ 2.5 ...