Temp Clamp Options: 4 Picks Compared by Probe Type and Range
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A temp clamp is a K-type thermocouple that clamps onto a pipe or tube, so the reading follows the pipe surface. The listings in this set mix two kinds of product: clamp-on probes and HVAC thermometers sold with a temp clamp, and two UEi clamp meters whose kits include a K-type probe. The UEi keyword is a brand, and only two of the four listings are UEi products, so this guide is organised by probe type rather than by brand. Figures come from the listing text, with check dates shown. Where two fields in one listing disagree, both values are given.
Quick answer
For a clamp-on probe that works with an existing meter, the Hicello two-pack gives a listed range of -40 °F to 392 °F and uses spring-loaded jaws for pipes. For a stand-alone reading with a display, the LM55 lists a measurement range of -20 to 150 °C, but its specification fields give a higher upper limit, so check the figure before relying on it. If you already own a clamp meter, the UEi DL379B and EPC include a K-type probe in the kit.
The four picks at a glance
| Pick (ASIN) | Type | Listed temperature range | Notable listed feature |
|---|---|---|---|
| Hicello K-Type Pipe Temp Clamp, 2-pack (B0DP7LD1HQ) | Clamp-on K-type probe | -40 °F to 392 °F (-40 °C to 200 °C) | Spring-loaded jaws, about 5.1 inch length |
| LUTIFIX LM55 HVAC Digital Temp Clamp (B0CQCXXV85) | Thermometer with temp clamp | -20 to 150 °C (bullets); 260 °C (spec) | Waveform display, 8 stored sets |
| UEi DL379B Clamp Meter (B00ZWVXT8W) | Clamp meter with K-type probe | Upper rating 752 °F; no probe range | Magnetic mount, backlit dual display |
| UEi EPC Clamp Meter (B0GNHBMGT2) | Clamp meter with K-type thermocouple | Not stated | Dual screen, padded case |
How these four were chosen
We kept listings whose title, kit contents or bullets name a temp clamp, a K-type clamp or a K-type thermocouple used for a clamp reading. Four listings met that test: two K-type clamp products, one HVAC thermometer that names a temp clamp, and the UEi DL379B and EPC kits that include a K-type probe. The Klein CL120, FNIRSI DMC-100 and Fieldpiece SC260 from the research set are clamp meters but do not name a temp clamp in their titles, so they were left out of this guide. The product checks are dated 18 October 2026, and the research listings were checked on 11 October 2026.
1. Hicello K-Type Pipe Temp Clamp, 2-Pack
The listing states a K-type clamp set of two pieces, with an operating temperature range of -40 °F to 392 °F (-40 °C to 200 °C). It is a plug-in K-type thermocouple that the listing says works with multimeters, clamp meters and thermometers that accept a K-type probe. The bullets describe reinforced, spring-loaded jaws for pipes and an overall length of about 5.1 inches (13 cm). The listed weight is 0.19 lb (0.085 kg), and the material is stainless steel in a yellow finish. The product dimensions of 8 by 8 by 1.8 inches are given for the set, not for a single clamp. The listing does not say whether the set includes a meter, and the included components field reads “no”.
Check the Hicello K-type temp clamp on Amazon
2. LUTIFIX LM55 HVAC Digital Temp Clamp
The LM55 is sold as an HVAC digital thermometer with a temp clamp. The bullets state a measurement range of -20 to 150 °C (-4 to 302 °F) and a temperature error within ±0.3 °C. The bullets describe refrigerant piping as the intended use. The specification fields give a different figure: the upper temperature range is listed as 260 °C, and the care instruction says to avoid temperatures outside -50 °C to 260 °C. The included components field reads “Manometer Gas Pressure Tester Kit”, while the part number is LUTIFIX-MMT408, so the listing does not clearly say what comes in the box. The screen is a 0.96 inch TFT colour display with 80 by 160 dots, operated with two buttons, and the device stores 8 waveform sets of 150 s each.
Check the LUTIFIX LM55 on Amazon
3. UEi DL379B Clamp Meter with K-Type Probe
The DL379B listing describes a clamp meter that includes a K-type temperature probe in the kit. The meter is listed as auto-ranging, with a backlit dual display, a magnetic mount and a work light. The bullets give CAT IV 300 V and CAT III 600 V safety ratings, and say the unit includes non-contact voltage detection. The specification field gives an upper temperature rating of 752 °F for the meter, which is about 400 °C. The listing does not state the temperature range of the supplied probe, so the probe limit cannot be read from the listing. The kit also includes test leads, two AAA batteries and a zippered pouch.
Check the UEi DL379B on Amazon
4. UEi EPC Clamp Meter
The EPC listing states that each kit includes a K-type thermocouple, silicone test leads, threaded alligator clips, threaded back probes and a padded case. It is listed as a dual screen model that replaces the DL579. The specification field gives CAT IV 600 V and CAT III 1000 V. The listing does not state a temperature range for either the probe or the meter, and its bullets do not describe a temperature measurement mode. Because the kit includes a K-type thermocouple, the listing supports a temperature reading only through that probe, and the range must be checked on the probe itself.
Worked example: a 180 °C pipe reading
Take a refrigerant pipe at 180 °C, which is 356 °F. The Hicello listing gives a range up to 200 °C (392 °F), so 180 °C is inside its range. The LM55 bullets give a range up to 150 °C (302 °F), so 180 °C is outside the bullet range. The LM55 specification field lists 260 °C as the upper range, which would include 180 °C, so the two LM55 figures disagree on this reading. Use the lower figure when the two conflict, and do not treat the 260 °C figure as confirmed until you check the manual.
For the UEi kits, the listing gives no probe range, so the 180 °C reading cannot be checked against either kit from the listing text alone. The DL379B meter rating of 752 °F is a different figure. It describes the meter, not the probe, and 356 °F is well below it. The listings do not say how the probe and meter ratings combine, so read the manual for both.
What the listings do not say
None of the four listings gives an accuracy figure for the probe reading, apart from the LM55’s ±0.3 °C error figure. The Hicello listing does not give a pipe diameter range for its jaws. The UEi listings give no probe range, and the EPC gives no temperature mode. The LM55’s conflicting range figures and its included-components field are not resolved in the listing text. None of the four listings states an IP code, so none says how it performs in damp or dusty plant rooms.
Frequently asked questions
What temperature range does a K-type temp clamp cover?
The Hicello listing states -40 °F to 392 °F (-40 °C to 200 °C). The LM55 bullets state -20 to 150 °C, and its specification fields state 260 °C as the upper range. The UEi listings do not state a probe range.
Do I need a separate meter to use a temp clamp?
The Hicello listing says it works with multimeters, clamp meters and thermometers that accept a K-type probe, so it needs a compatible meter. The LM55 is sold as a thermometer with its own display. The UEi DL379B and EPC kits include a K-type probe for use with the meter.
Which listing gives the widest range?
The Hicello listing gives the widest stated range that is consistent across its fields, at -40 °F to 392 °F. The LM55 specification field gives a higher upper limit of 260 °C, but its bullets give 150 °C, so the widest figure is not confirmed for that product.
Why does the LM55 listing show two temperature ranges?
The bullets state a measurement range of -20 to 150 °C, while the specification fields list an upper temperature range of 260 °C and a care instruction of -50 °C to 260 °C. The listing does not explain the difference, so it should be checked before use.
Conclusion
For a clamp-on probe with a stated range that matches the listing, the Hicello two-pack has the clearest data. The LM55 is a complete thermometer, but its range figures disagree, so confirm them before buying. The UEi DL379B and EPC are useful if you already need a clamp meter with a K-type probe, although neither listing states the probe range. Confirm the probe range, the included parts and the brand on the live listing before you buy.
For related reading, see best handheld clamp, best amp clamp, best true RMS digital clamp meter and how a current clamp works.
Hicello · LUTIFIX LM55 · UEi DL379B · UEi EPC
