Bought from WM for $17.97 - I carry it on me as a spare for contingencies and haven't used it much - it seems work well - the main reason for writing a review is to show its characteristics - no surprises on resistance, dc volts, ac volts and dc current - also it measures the forward resistance of a diode in kΞ© with a test current of 1.5mA maximum - this gives one too 30-40 Hz square wave, 2 volts (pp) maximum that can be applied to each audio amplifier input to test operation by generating noise. For my purposes I would pass the diode test and the audio signal. to check the integrity of the audio signal - I've added photos to the instruction manual for more info. This is a decent little digital multimeter -
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