What specifically distinguishes the “D+” variant of the UT890 series is its focus on electrician safety and AC mains diagnostics. It swaps out the temperature probe of the C-model in favor of an advanced Non-Contact Voltage (NCV) detector and a highly useful “LIVE” wire testing function. This allows you to quickly distinguish between live and neutral wires using just a single test probe. Furthermore, it boasts an absolutely massive capacitance testing range (up to 100mF), allowing you to test large power supply capacitors that lesser meters simply cannot read. Housed in UNI-T’s signature rugged, drop-resistant over-molding and featuring a highly unique “blown fuse” audible alarm, it is designed to keep both you and the meter completely safe during intense electrical work.

Key Features & Functional Advantages

• True RMS Measurement: Delivers highly accurate AC voltage and current readings on complex, non-sinusoidal electrical waveforms where standard meters would incorrectly calculate the values.

• NCV & LIVE Wire Testing: Features a built-in sensor for detecting AC voltage safely without contact, plus a dedicated LIVE function that uses a single probe to identify the hot wire in an AC outlet with an audible and visual alarm.

• Massive Capacitance Range: Capable of elegantly measuring up to 100mF (100,000F), making it incredibly useful for repairing audio amplifiers and heavy-duty motor start capacitors.

• Intelligent Fuse Alarm: Features a brilliant built-in safety warning system that audibly and visually alerts you if the internal protection fuses have blown, preventing you from chasing false diagnostic readings.

• High Current Capacity: Designed to safely handle up to 20 Amps of continuous current, significantly outperforming the standard 10-Amp limit found on most handheld meters.

Perfect For

• Electricians & Household Maintenance: The absolute best choice for safely tracing live wires, testing AC outlets, and diagnosing breaker panels using the NCV and LIVE functions.

• Advanced Electronics Repair: The massive capacitance range and True RMS capabilities make it perfect for fixing modern flat-screen televisions and switching power supplies.

• Industrial Maintenance: Safely verifying high-voltage mains and accurately testing variable-frequency drives on the factory floor.

• Hardware Engineering: A trustworthy, highly accurate bench meter for verifying complex logic circuits and measuring precise resistor and capacitor values.

Technical Specifications

• Device Type: True RMS Manual-Ranging Digital Multimeter

• Display: 6000 Counts LCD with Backlight

• DC Voltage Range: 600.0mV to 1000V

• AC Voltage Range: 6.000V to 750V (True RMS)

• DC/AC Current Range: 60.00A to 20.00A

• Resistance Range: 600.0 to 60.00M

• Capacitance Range: 6.000nF to 100.0mF

• Frequency Range: 9.999Hz to 9.999MHz

• Extra Functions: NCV (Non-Contact Voltage), LIVE Wire Test, Blown Fuse Alarm, Transistor hFE, Diode Test, Continuity Buzzer, Data Hold

• Power Source: 2 x 1.5V AAA Batteries

• Safety Rating: CAT II 1000V / CAT III 600V