GENERAL SPECIFICATIONS : Sensing : AC, True RMS Display : 3-5/6 digits 6000 Counts Backlight LCD Display. 61 Segments Analog Bar Graph : 60 per second max. Auto or Manual-ranging mode. Auto Power Off. Polarity : Automatic Update Rate : 5 per second nominal Power Supply: Four Alkaline AA batteries Power Consumption: 4.5mA typical except : ACV +Hz & VFD ACV +Hz : 7.0mA Earth Continuity Test : 110mA @20W range, 220mA @2.0W range. Tester can perform at least 3000 Earth Continuity Test measurements with new alkaline batteries at room temperature. These are standard test of 1W with a duty cycle of 5 seconds on & 25 seconds off. Insulation Resistance @ 1mA Test Current : 50V output Voltage : 25mA, 100V output Voltage : 45mA 250V output Voltage : 85mA, 500V output Voltage : 170mA 1000V output Voltage : 440mA Tester can perform at least 950 Insulation Tests with new alkaline batteries at room temperature. These are standard tests of 1000V into 1MW with a duty cycle of 5 seconds on and 25 seconds off. Operating Temperature : -10ºC ~ 40ºC Relative Humidity : Maximum relative humidity 90% for temperature up to 28ºC decreasing linearly to 50% relative humidity at 40ºC. Pollution degree : 2 P Rating : IP40 Storage Temperature : -20ºC ~ 60ºC, < 80% R.H. (with battery removed) Altitude : Operating below 2000m Temperature Coefficient : Nominal 0.15 x (specified accuracy)/ °C @(-10ºC~18ºC or 28ºC~40ºC), or otherwise specified. Low Battery: approx. 4.6V APO Timing: Idle for 20 minutes APO Consumption: 50mA typical Dimension: 208(L) X 103(W) X 64.5(H) mm with holster Weight: 635 gm with holster.