UEI Test Instruments
Dual Display HVAC Clamp Meter
The DL379B is a professional HVAC clamp meter for electrical diagnostics across air conditioning, refrigeration, heating and service work.
Technical snapshot
Key DL379B measurement specs.
A compact overview of the main ranges used for HVAC/R electrical service, troubleshooting and commissioning checks.HVAC electrical diagnostics
Test HVAC circuits quickly with one compact clamp meter.
The DL379B brings the key electrical functions HVAC/R technicians use into one field-ready meter. It supports clamp current, voltage, resistance, capacitance, frequency, duty cycle, microamps and K-type temperature readings for faster on-site fault finding.
- Dual display HVAC clamp meter for professional electrical testing.
- Dual-level non-contact voltage detection.
- CAT IV 300V / CAT III 600V safety rating.
- Measures up to 400A AC through the clamp jaw.
- Supports capacitance, frequency, duty cycle and microamp flame sensor testing.
- Backlit display, worklight, min/max, hold, auto power off and magnetic mount.
What it helps check
Use the DL379B when you need a broad HVAC/R electrical diagnostic tool without jumping between multiple meters. It is well suited to live circuit checks, component testing and heating-system flame-sensor work.
- Compressors, motors, controls and electrical circuits.
- Capacitors, resistance, continuity and diode checks.
- Flame sensor microamps and K-type temperature readings.
Service applications
Built for air conditioning, refrigeration, heating and electrical service.
The DL379B is aimed at trade professionals who need fast readings on HVAC circuits. Its dual display and broad function set make it useful for routine maintenance, diagnostics and fault confirmation.
Use it for
Electrical checks across HVAC/R systems.
The clamp jaw handles current checks without breaking the circuit, while the test leads and temperature input cover a wide range of service tasks.
- Commissioning checks on motors, compressors and electrical circuits.
- Routine maintenance checks for capacitors, current draw and control circuits.
- Troubleshooting support for heating flame sensors, voltage faults and intermittent electrical issues.
Dual display workflow
See more information while testing.
The dual display helps keep readings visible while switching between HVAC electrical checks, making it easier to compare values and work through fault-finding steps efficiently.
Field-ready kit
Supplied with accessories for HVAC/R service.
The DL379B includes test leads, batteries, a K-type temperature probe and carrying case, giving technicians the core kit needed for typical field diagnostics.
Safety notes
Electrical testing must be treated seriously.
This is a professional electrical test instrument. Before use, read the instruction manual, inspect the meter and leads, confirm the correct measurement mode, and follow all applicable electrical safety procedures and PPE requirements.
Before testing
Verify, connect and measure correctly.
- Verify operation on a known source before and after live testing.
- Keep fingers behind the guards and use leads rated for the job.
- Never exceed the meter’s category rating or stated measurement limits.
Related test instruments
Linked Kane & UEI products from Omni Tools.
Internal Omni Tools links only — related electrical, temperature and HVAC/R test instruments.Useful information & documents
DL379B resources.
Omni Tools product and range links, plus the official UEI DL379B instruction manual.Omni Tools links
Manufacturer documents
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