Ground resistance testercet, 03Utilizing a 6V DC power source consisting of four 1. 5V it functions, Alkaline batteries within a temperature range of 10°C to 55°C and supports relative humidity from 10% to 90%, Complete with a 4-digit LCD screen This product boasts an LCD panel sized 47 x 28. 5mm, A jaw length of 32 x 65mm, A total weight of 1120g and a, With batteries meter size of 90mm in width boasting a 66mm thick insulation system with dual protection, Tailored for the jaw way range shift in an automatic external magnetic field < This instrument can measure external electric fields surpassing 40a/m, Featuring a single measurement duration of 1 second, A resolution capability of 0. 001 ohm, And a resistance range spanning from 0. 01 to 1000 ohm, All with an electric field strength under 1v/m