Get a Fast Quote
🛠️ Need the Right HVAC Tool for the Job?
Whether you're quoting a bulk order or chasing hard-to-find tools, we’re here to help.
Get a fast, personalised quote—no pressure, no spam!
Fill out the form below and we’ll get back to you ASAP.
📩 Request a Quote
Description
Uni-T UT39C Digital Multimeter — a reliable, manual-ranging meter for HVAC and refrigeration techs who need AC/DC volts and amps, resistance, temperature and frequency in one tough unit. It’s a bloody good everyday meter for installs, diagnostics and apprentice kits — too easy.
Key Features & Trade Benefits
- CAT I 1000V / CAT II 600V — suitable for general appliance and low-energy circuits; know your category before cracking open a board.
- AC/DC volts to 750V/1000V — covers common mains and control checks on split systems and light commercial gear.
- AC/DC current to 20A — quick compressor/fan draw checks when a clamp’s not handy (observe time limits).
- K-type temperature (−40~1000 °C) — verify discharge air, line temps and defrost — fewer call-backs.
- Frequency, capacitance, diode & continuity — one meter for most service tasks; data hold and auto power-off save time and batteries.
- 1999-count LCD + holster — clear readout with basic drop protection for jobsite knocks.
Why This Product Matters
On a steamy Gold Coast rooftop, a tech swapped to the UT39C to chase a no-cool fault. Quick voltage, continuity and temp checks later, the culprit was a bad cap — job done and the café reopened before lunch. For more meters, see our Multimeters category. Fair dinkum handy.
Pro Tip
Before measuring current, double-check your lead placement and range, and stick to the meter’s time limits on the 20A jack. For mains switchboards or 3-phase distribution, step up to a CAT III/IV meter like the UT17B PRO — she’ll be right.
Compatibility & System Info
- Measurement ranges: DC V 200 mV–1000 V; AC V 2–750 V; DC/AC A 2 mA–20 A; Ω to 20 MΩ; °C −40~1000; Hz 2–20 kHz.
- Safety: CAT I 1000 V / CAT II 600 V (not for CAT III switchboards). Always follow Australian electrical safety guidance.
- Typical jobs: Sydney split installs, Brisbane refrigeration service, controls testing and training vans — no worries.
What’s Included
- UT39C meter with rubber holster
- Test leads + 9V battery
- Point-contact K-type temperature probe
- English manual
- 12-month warranty
Inclusions per HVAC Shop product listing.
Specifications
| Function | Range | Best Accuracy |
|---|---|---|
| DC Voltage | 200 mV / 2 V / 20 V / 200 V / 1000 V | ±(0.5%+1) |
| AC Voltage | 2 V / 20 V / 200 V / 750 V | ±(0.8%+3) |
| DC Current | 2 mA / 200 mA / 20 A | ±(0.8%+1) |
| AC Current | 2 mA / 200 mA / 20 A | ±(1%+3) |
| Resistance | 200 Ω / 2 kΩ / 20 kΩ / 2 MΩ / 20 MΩ | ±(0.8%+1) |
| Capacitance | 2 nF / 200 nF / 20 µF | ±(4%+3) |
| Temperature | −40 ~ 1000 °C | ±(3%+10) |
| Frequency | 2 kHz ~ 20 kHz | ±(1.5%+5) |
| Display | 1999 counts | — |
| Power | 9 V (NEDA 1604/6F22) | — |
| Size / Weight | 172 × 83 × 38 mm / 310 g (incl. battery) | — |
Specifications verified against Uni-Trend documentation.
Warranty & Returns
Backed by a 12-month warranty. For change-of-mind or faulty returns, see Shipping & Returns. Always use meters in line with Australian electrical safety guidance.
FAQs
Is the UT39C auto-ranging?
No — it’s a manual-ranging meter (ideal for teaching apprentices correct range selection).
Does it measure temperature?
Yes. It includes a K-type probe and measures approximately −40 to 1000 °C. For pipe temps, a clamp K-type like the TC24 is a ripper add-on. See pipe clamp.
Is it safe for switchboards?
It’s rated CAT I 1000 V / CAT II 600 V. For CAT III/IV switchboards and distribution, use a higher-category DMM such as the UT17B PRO.
Related Products
- Want CAT III/IV safety and True RMS? Step up to the Uni-T UT17B PRO for mains work and noisy signals.
- Prefer a clamp for current? The Fieldpiece SC440 clamp meter adds safe current measurement and HVAC functions.
- Need spare probes? Grab Uni-T UT-L20 probes to keep your kit ready.
You may also like
Recently viewed
Popular Brands We Distribute
