The UT39A is a digital Multimeter with high precision and accuracy.
UT39A voltmeter is with on-off warning function to indicate you the situation of the tool. The output current is operated at low-frequency square wave to prevent the acoustic resonance. UT39A voltmeter with hint for low battery to avoid data losing caused by auto power off without reserving. Resistance of UT39A voltmeter voltage input reaches to 10MW. UT39A voltmeter is a digital multimeter not only good for AC/DC voltage testing, but also excellent in AC/DC current, resistance, capacitance, temperature, transistor, frequency, diodes and continuity testing. Besides, UT39A voltmeter has data hold and sleep mode features.
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