This Extech insulation tester measures up to 10 GΩ with 250 V, 500 V and 1000 V test voltages. Features include: low-ohms for testing connections, analog bargraph for viewing trends, AC/DC voltage measurement to 999 V, manual data record/recall function (9 sets), and live circuit display warning and beeper. Can be used to test motor, transformer windings, instruments, and appliances, check for moisture in wire and cable assemblies, safely evaluate a new wiring installation, and check for carbon tracking in breakers, relays, and switches. Extech insulation testers offer high sensitivity to assure reliable monitoring of low resistance motor windings.
3 test voltages of 250-volt, 500-volt, and 1,000-volt
Measure insulation resistance to 10-GOhms
Large LCD display with analog bar graph
Low ohm function for testing connections
Automatic discharge of capacitive voltage charges
AC/DC voltage measurement up to 999-volts
Manual data record and read function (9 sets)
Live circuit display warning and beeper
Complete with carrying case, test leads, and 6 AA batteries