The ridgid dm 100 micro digital multimeter is a true rms and auto ranging unit which provides accurate and fast measurements in all applications it features 11 different electrical functions ranging from acdc voltage and current 1000 volt to temperature measurements the multimeter has a double moulded water resistant 1m ip67 housing it is also drop proof and perfectly suitable for use in the harshest job site conditions an extra large backlit lcd display provides easy and clear readings the dm 1