... : -10 ~ 70 ºC ±1.5 ºC ***Special Functions: ♦ USB Interface♦ Measurement of Insulation Resistance for HP Devices (Transformer, Electric ... 15W♦ Built-in High Power Voltage Generator (250V ~ 5kV Adjustable)♦ Time for Continuous Use: Dry batter last 5 hours and ... × 6,Data analysis Software , Temp. sensor, Tester probes , USB cable ,User Manual, Gift Box♦ Optional Accessories: rechargeable battery, charger ...