The UT39A+ offers compact portability with a new generation smart ADC chip for accurate measurements. Built for professional and commercial use, it combines manual and capacitive auto-ranging, overvoltage protection, and a rugged design suitable for demanding environments. This meter delivers reliable core measurements along with convenient features to simplify routine diagnostics. Key Features 1000V DC voltage test capability 750V AC voltage test capability 10A DC/AC current testing Measurement of high resistance up to 200MΩ Continuity, diode, and transistor tests Live alarm, overload protection, backlight, and hold function Safety ratings CAT II 1000V / CAT III 600V Manual range plus capacitive auto-range option Display and Ranges Display: 3999 counts Manual ranges: ACV, DCV, Ω, A Auto range: Capacitor range Specifications Function Range Resolution Accuracy DC Voltage 0.4000 V / 4.000 V / 40.00 V / 400.0 V / 1000 V 0.1 mV / 0.001 V / 0.01 V / 0.1 V / 1 V ±(0.5%+5) AC Voltage 0.0040 V / 40.00 V / 400.0 V / 750 V 0.001 V / 0.01 V / 0.1 V / 1 V ±(1.0%+2) DC Current 0.0400 A / 0.4000 A / 4.000 A / 10.00 A 0.01 A / 0.001 A / 0.01 A / 0.01 A ±(1.0%+2) AC Current 0.0400 A / 0.4000 A / 4.000 A / 10.00 A 0.01 A / 0.001 A / 0.01 A / 0.01 A ±(1.0%+2) Resistance 0.4000 Ω / 4.000 Ω / 40.00 Ω / 400.0 Ω / 4.00 kΩ / 60.0 kΩ / 600.0 kΩ / 2.0 MΩ / 200.0 MΩ 0.1 Ω / 0.001 Ω / 0.01 Ω / 0.1 Ω / 0.01 kΩ / 0.01 kΩ / 0.01 kΩ / 0.1 MΩ / 0.01 MΩ ±(0.8%+5) Capacitance 4.000 nF / 40.00 nF / 4.000 μF / 40.00 μF / 400.0 μF / 4.000 mF / 40.0 mF 0.001 / 0.01 / 0.001 / 0.01 / 0.01 / 0.001 / 0.01 ±(5.0%+35) Frequency 9.999 Hz / 9.999 kHz / 9.999 MHz 0.001 / 0.001 / 0.001 ±(0.1%+4) NCV √ Not applicable in this entry Diode √ Transistor √ Special Features Backlight and torch mode Low battery indicator and auto power off NCV live detection Continuity buzzer Auto range and dual display modes Overload protection up to CAT III 600V General Characteristics Color: Red and Gray Bare weight: 310 g Dimensions: 172 × 83 × 38 mm Power: 9V battery or equivalent Accessories Test leads Battery Protective case