KS-4102
The latest circuit design permits the instrument to operate with the minimum of influence from earth voltage and earth resistance of auxiliary earth bars
Low power consumption & Battery check functions
Simplified earth resistance measurement method.
Self-check facility
Earth Resistance: ×1/×10/×100Ω±5% of full scale
AC Voltage: 0-30V ±5% of full scale
Dimension: 136(L) ×136(W) ×80(H) mm
Weight: Approx.660g

KS-4102A
Earth AC voltage: 30V ±5% of full scale
Earth Resistance: 12/120/1200Ω ±5% of full scale
Dimension: 143(L) ×118(W) ×65(H) mm
Weight: Approx.500g (including battery)

KS-4105
3 1/2 digits LCD display with Max. reading of 1999
Earth AC voltage: 200V ± (1.2%rdg+5dgts)
Earth Resistance: 20/200/2000Ω ± (3.0%rdg+0.2Ω)
(20Ω below) ± (3.0rdg+5dgts)
Dimension: 143(L) ×158(W) ×65(H) mm
Weight: Approx.500g (including battery)