Measuring Ranges:10/100/1000Ω±3(% + 1)30V AC(5KΩ/V approx) ±(3% + 1)
Measurement System:Earth Resistance by constant crrent  inverter Eath voltage by recitifier type 5KΩ/V approx 40-500Hz withstand Voltage=1500V AC for one minute between electrical circuit and housing case
Self-check Facility:Lead wire connection to C and P terminals and pressing OFF BATTCHECK button "OK" lamp lights is ok for operation lead wire connection to C and E terminals is good when "ok" lamp is illuminated

Batteries:1.5V(SUM-3)*8
Size weight:140*140*90mm 800g
Dimension:62.5*34.5*33.5
G.W.:17.5KGS
N.W.:16.5KGS