UNI-T UT89X TRMS multimeter tester ac dc Voltmeter Ammeter Capacitance Frequency Resistance tester with Temperature testing Reliable Quality: the case was adopted with double color mould technology, which is more crash resistant and anti-shock than single color one, and comfort hand-held feeling. 2.8" Large LCD Display: 62*36mm LCD screen with large digital-readout and backlight for clear reading, and the flashlight for conveniently operating in dark environments. Practical Functions: for measuring DC/AC voltage, DC/AC current, Resistance, Capacitance, Frequency & Duty ratio, Diode & Triode, Live wire, and Temperature. Temperature Range: testing range is -40~1000C/-40~1832F, C / F unit conversion. Low Battery Indicator: remind you to replace battery to ensure measurement accuracy. NCV Measurement: adopting sectional measurement of the voltage and the smallest testing voltage is AC 15V/50Hz. Auto Power-off: 15mins automatic shutdown if there's no operation to save power. Wide Measuring Range: true RMS measuring up to 1,000V voltage, 20A current, and fast capacitance measurement of 100mF. Audio & Visual Alarm: buzzer and flashlight alarm in measuring voltage/current/diode/triode/NCV/LIVE.