True RMS Wireless Clamp Meter

The UEI DL429B True RMS Wireless Clamp Meter is a professional HVAC/R electrical testing instrument designed for advanced diagnostics on modern heating, cooling and refrigeration systems. Built with True RMS precision, wireless app connectivity, dual temperature inputs and DC amp measurement, the DL429B gives technicians the measurement flexibility needed for both standard HVAC equipment and newer variable-speed systems.

The DL429B is designed for wider HVAC applications including ECM motors, variable speed DC motors, plug-and-play DC motors and AC ductless mini splits. It measures up to 600A AC/DC, 750V AC, 1000V DC, 60MΩ resistance, 2000µF capacitance, 2000µA AC/DC microamps, and frequency from 99.99Hz to 99.99kHz. It also supports duty cycle, diode testing, continuity, NCV detection, LRA inrush and differential temperature.

For temperature testing, the DL429B includes two temperature inputs and a wide temperature measurement range of -328°F to 2462°F, making it suitable for checking temperature split, system performance and differential temperature readings during HVAC/R service. Practical jobsite features include a dual display, detachable head, backlight, worklight, magnetic mount, auto/manual ranging, min/max, peak hold, relative mode, DC zero, low battery warning and auto power off.

The DL429B is rated CAT III 600V, ETL listed, CE conforming, RoHS compliant, FCC/IC compliant, and offers 6 ft drop protection with protective overmoulding for trade use. It includes ATT57 test leads, AAC3 alligator clips, eight AAA batteries, two ATT29A temperature probes and a pouch/case.

Key Features

• True RMS wireless HVAC clamp meter

• Wireless output with free iOS® and Android™ app

• Dual display and detachable head

• Measures 600A AC/DC

• Measures 750V AC / 1000V DC

• Measures 2000µA AC/DC for flame sensor testing

• Resistance up to 60MΩ

• Capacitance up to 2000µF

• Frequency range: 99.99Hz to 99.99kHz

• Dual temperature inputs with differential temperature

• Temperature range: -328°F to 2462°F

• NCV detection, LRA inrush, diode and continuity testing

• CAT III 600V safety rating

• Includes test leads, alligator clips, temperature probes, batteries and case