Product Overview: This instrument helps you measure the electrical insulation at a determined voltage (250V, 500V or 1000V). Is an indispensable tool to evaluate the integrity of an electric circuit, specially needed to check that components and installation in the electric cars are completely insulated from the bodywork. In industrial installations, is the tool that allows you to perform periodically inspections of the insulation resistance. Measurements that are required for the DIN VDE 0105-100 (VDE 0105-100):2009-10 norm. Specially indicated for use in electric and hybrid cars. Installation category: 2 Measurement category: cat iii Altitude: up to 2000 meters Display lcd with dual display Measurement range Voltage ac: 0 750v Voltage dc: 0 1000v Resistance: 0 - 200 / 200 - 2000 Insulation resistance: 0 200m / 200 2000 m Sampling rate: 2.5 times per second Zero adjustment: automatic adjustment Operating temperature: 0º - 40ºc (32ºf 104ºf), relative humidity below 80% Storage temperature: -10ºc 60ºc (14ºf 140ºf), relative humidity below 70% Power source: dc9v (6x1.5v size aa batteries) Dimensions (length x width x high): 200 x 92 x 50mm