The TPI 100 automatically switches between AC and DC voltage as well as resistance measurements so you don’t have to. Provides simple to use one button operation.
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72-10220 - Compact Auto Ranging Digital Multimeter
The TPI 126 is a hand-held auto ranging DMM that measures, AC/DC voltage, AC/DC current, resistance, diodes and continuity.
72-10285 - Combustible Gas Leak Detector with LCD Display
The TPI 721 is designed to find combustible gas leaks in pipes, fittings, regulators, etc.. Capable of displaying real ppm, stepped ppm and %LEL. Detects natural gas, propane, butane, etc..
I've ordered several times from MCM and have always been very satisfied with their products, service and shipping.