Features:UT39+ series modern digital multimeter are portable device designed for the electrical industry.They feature overvoltage and overcurrent alarm and high voltage protection, triggered during faulty operation.UT39A+ don 039;t have NCV Temperature Frequency function.But UT39C+ with these function.Features: 1000V DC voltage measurement; 750V AC voltage measurement; 10A DC/AC current measurement; Resistance/Capacitance; hFE (Transistor testing); Diode/Continuity test.Double-layer protective sleeve, strong and anti-fall. The inner layer is made of ABS fireproof material,and the outer red protective layer is made of rubber to prevent shock and anti-shake.NCV function (UT39C+ only): The function of non-contact induction of AC voltage, which refers to whether the wire is live or not when the wire is not damaged and the electrode is not touched when the voltage is detected.The meter will beep. At the same time, the display screen displays the sensed electric field intensity in the form of pen segments.Temperature measurement function: To meet the needs of users in the air-conditioning industry. UT39C+ can provide humidity measurement function of -40~1000 (-40F~1832F). It can provide convenient measurement and maintenance services for HVAC/refrigeration professional technicians.Specifications:Material: ABS, RubberColor: Red blackTypes: A(UT39A+), B(UT39C+)Display digits: 3999Capacitance range expansion: 10mFDC voltage: 400mV/4V/40V/400V/1000VAC voltage: 4V/40V/400V/750VDC current: 400uA/400mA/10AAC current: 4mA/400mA/10AResistance: 400/4000/40k/400K/4M/40MCapacitance: 4nF/40nF/400nF/4uF/40uF/400uF/4mF/10mFFrequency: 1MHzCelsius temperature ()-40-1000Fahrenheit (F): -40~1832FEnergy range selection: manualhFE: YesData hold: YesBacklight: YesLow battery indication: YesAuto power off: YesPower: 1.5V battery (R03)x2(not included)Display: (Approx)56.5mm x 36mmSize: (Approx)175x81mm (LxW)Package Included:1 PC x Digital Multimeter2 PCs x Pen2 PCs x Probe1 PC x ManualNote:1. Due to the light and screen difference, the item 039;s color may be slightly different from the pictures.2. Please allow 0.5-2 cm differences due to manual measurement.