Specifications subject to change without notice.
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Combines a 1000V Insulation Tester
With a full-featured True RMS MultiMeter in a single, compact instrument
CAT IV Insulation Tester/MultiMeter
with Wireless PC Interface
MG300 ..................CAT IV Insulation Tester/True RMS MultiMeter w/Wireless PC Interface (915MHz)
MG300-NIST ........MG300 with Certificate of Calibration Traceable to NIST
MG302 ..................CAT IV Insulation Tester/True RMS MultiMeter w/Wireless PC Interface (433MHz)
MG302-NIST ........MG302 with Certificate of Calibration Traceable to NIST
TL805....................Double Injected Test Leads
(NOTE: USA, Mexico, and Canada use 915MHz model and majority of other countries use 433MHz model)
•Wireless USB interface transmits measurement data to a PC
•Backlit super large triple display
•125V, 250V, 500V, and 1000V test voltages
•Insulation Resistance from 0.001M to 4000MΩ Ω
•Auto discharge of capacitive voltage
•Lock Power On Function for hands-free operation
•Data Hold and Auto Power Off
•Min/Max and Relative mode
•Waterproof (IP67) rugged double-molded design
•Complete with remote receiver with USB cable, Windows
software, heavy duty test leads, alligator clip test lead, Type K bead wire
temperature probe with adapter, carrying case, and 6 x AA batteries
Specifications Range Resolution Accuracy
Insulation Resistance 4M 40M 400M , 4000M 0.001M ±3%Ω, Ω, Ω Ω Ω
Insulation Test Voltages 125V, 250V, 500V, 1000V
AC Voltage 1000V 0.1mV ±1%
DC Voltage 1000V 0.01mV ±0.06%
AC Current 10A 0.1µA ±1.5%
DC Current 10A 0.01µA ±1.0%
Resistance 40MΩ 0.01Ω ±0.3%
Capacitance 40mF 0.001nF ±3.5%
Frequency 100MHZ 0.001HZ ±0.1%
Duty Cycle 0.1 to 99.9% 0.01 ±1.2%
Temperature -58 to 1832°F 0.1°F ±1% + 4.5°F
-50 to 1000°C 0.1°C ±1% + 2.5°C
4-20mA% -25 to 125% 0.01%
Power source 6 x AA batteries
Dimensions 7.8 x 3.6 x 1.9” (200 x 92 x 50mm)
Measure the insulation resistance of
Continuous data streaming to your
Only a True RMS meter can give accurate
readings of distorted waveforms
