EM480A is the Insulation resistance Testing Meter.

GENERAL DESCRIPTION This instrument is accurate, reliable and easy to operate. For insulation resistance test, you can change the test voltage among 250V, 500V and 1000V. It can also be used to test ACV, resistance which is less than 200Ω, and test for continuity. You can use it to test transformer, motor, cable, switch, electrical appliance as well as to do insulation resistance test.
 Data hold function

 Test voltage can be changed by the rotary switch

 LED used as normally working indicator under high voltage condition

 Auto range in insulation resistance measurement

 Auto power off

 High ability to withstand high load

 Powered by batteries, no need to generate electricity by hand

Protection circuit provided, be able to avoid damage caused by the discharge voltage of the tested load.

AC 700V&----1V-----1.5%rdg +5 dgts
200Ω--------0.1Ω---1.0%rdg +3 dgts
2000M/250V--1k-----<200MΩ 3%rdg+3dgts
200MΩ/500V--1k----->200MΩ 5%rdg+5dgts
2000MΩ/1000V
Power:1.5V(AA) × 6
Dimensions (W × L × T):110×168×62 mm
Weight:485g (with battery)