Sanwa MG1000 Digital Insulation Tester 
Digital Insulation Tester 
ModelL MG1000 
Sanwa - Japan 
 
Product Features:
Allows you to measure insulation resistance more safely by avoiding operation mistakes.
Hot-line state (30V minimum) detection
Large volt mark with the buzzer sound
Automatic data hold function
Bargraph just like analog meter
Large display with backlight
Easy to use & tough body
IP54
 
Display : numeral display 4000
Sampling rate : 2 times / sec.