Socomec AL390, Insulation Tester Socomec AL390, Insulation Tester, Display Type: LCD, Minimum Operating Temperature: -10°C, Maximum Operating Temperature: +55°C, Dimensions: 144 x 133 x 72mm, Length: 144mm, Weight: 650g, Width: 133mm, MPN: 47339611 GBP 1925.44 1