Sanwa PDR4000 Digital Earth Tester 
Digital Earth Ground Tester 
Model: PDR4000 
Sanwa - Japan 
 
Specification:
Three measurement ranges: 40Ω, 400Ω, 4000Ω
3-pole / 2-pole earth resistance measurement
※Optional accessory TL-68 is necessary for 2-pole measurement
Data hold
Backlight
Relative value
Auto power off (10min.) (cancelable)
Capable of measuring interference voltage
2mA measuring current

Display: numeral display 4000
Sampling rate: 2 times/sec.