... in China 3.We can provide meter ,voltmeter,ammter,power meter.... 1.Output Mode Option:X: Display instrument ... temperature -10-55ºCStorage temperature -20-75ºCSafetyInsulation signal, power supply, output terminal resistance to case> 500MΩWithstand voltage ... signal input, power supply and output gas > AC2kVOutlineDimension 120*120mm 5.Panel description 2011 new dc power meter