Features:

* Wight: 243g * Length of the connecting cable not less than 1500mm 

* Dimensions and material of a metal plate for testing electrodes: 150*65*0.5 mm, steel 

* Test voltage up to 116V * Measuring accuracy of surface resistance: ±3% 

* Measuring range (10V): 10E3 to 10E6Ω * Measuring range (100V): 10E4 to 10E11Ω 

* Standard power supply of batteries: 9V《Krona》and 1.5V《AAA》