Kyoritsu 4102 Analog Earth Resistance & Voltage Tester 

• The latest circuit design permits the instrument to operate with the minimum of influence from earth voltage and earth resistance of auxiliary earth spikes.
• Low power consumption. Only 12V/100mA max.
• Earth resistance value can be read directly from the scale.
• Simplified measurement can be easily made by pressing the "Simplified Measurement" switch button only. No need to use a shorting wire as terminals P and C can be internally shorted by pressing this switch.
• Battery replacement can be easily made without removing the carrying case.
• Lead wire connection to C and P terminals and proper auxiliary earth resistance can be checked by "OK" lamp. Lead wire connection to C and E terminals is good when "OK" lamp is illuminated.

 
Measurement Ranges:
    Earth Resistance
    0 - 10W /0 - 100W /0 -1000W
    Earth Voltage 
    (40Hz-500Hz) 0 - 30V AC 

Accuracy:
    Earth Resistance
    ±3% of full scale
    Earth Voltage
    ±3% of full scale

Measurement System:     Earth resistance  constant current inverter 800Hz approx, 2mA. Earth voltage by rectifier type 5kW/V approx, 40Hz-500Hz.

Withstand Voltage:      1500V AC for 1 minute.
Power Source:             R6P (AA) (1.5V)x8    
Dimensions:                 140mm long x 140mm wide x 90mm deep
Weight:                          800g approx.

Accessories:
P/N 7023 (Test Leads) x 1 set
P/N 8032 (Auxiliary earth spikes) x 1 set
Battery R6P (AA) x 8
P/N 9075 (Carrying Case)
Instruction manual