Temperature probes

Klein Tools Type K pipe clamp, −20 to 100 °C (-4 to 212 °F)

The genuine Klein pipe clamp — and the narrowest temperature range on this shelf, at the highest price of the two clamps.

Klein Tools 69140 type K pipe clamp with its flexible lead

Klein Tools Type K pipe clamp, −20 to 100 °C (-4 to 212 °F)

The genuine Klein pipe clamp — and the narrowest temperature range on this shelf, at the highest price of the two clamps.

Type and plug fit: Type K, stated. "Works with any digital multimeter or clamp meter that measures temperature", and Klein adds that its K-type accessories work with all Klein multimeters and clamp meters that measure temperature "as well as any other brand with meters that measure temperature". The banana plug adapter is NOT in the box: it is Cat. No. 69146, sold separately — which matters because this shelf's introduction says the plug is where fit fails
Probe style: A PIPE CLAMP, which is a fourth style this shelf's introduction does not name. It lists a bead for air, a flat pad for surfaces and a sheathed rod for immersion; a spring clamp that closes round a pipe reads the outside wall of a line you cannot immerse anything in. It is the dominant style in the American relevé for this shelf, because that is how a refrigeration circuit is diagnosed
Stated temperature range: −4 to 212 °F (−20 to 100 °C), stated. That is the NARROWEST range on this shelf: the published Taiss states −40 to 350 °C (-40 to 662 °F), the Nxtop 0 to 1100 °C (32 to 2012 °F), the Klein 69142 beside it 0 to 480 °C (32 to 896 °F), and the ZIBOO clamp that borrows this part number claims −40 to 200 °C (-40 to 392 °F). One hundred degrees Celsius is the top of it, which covers a heating flow and stops below a hot gas line
Stated accuracy: ±2%, stated — and then the sentence that makes it honest: "Thermocouple accuracy is dependent on the accuracy of the meter being used." Two probes on this shelf publish a figure at all — this clamp and the ZIBOO — and both add that caveat. It is the right way to put it: a thermocouple generates a voltage, and what turns that voltage into a number is the instrument
Cable length: 40 inches, 102 cm, flexible. The ZIBOO clamp states 39.78 inches for the same 102 cm (40.2 in), which is the same lead described to two decimal places. The published Taiss five-pack gives 3 m (10 ft), three times either clamp
Clamp capacity: Pipes from 1/4 to 1-3/8 inch diameter. The ZIBOO clamp claims 1/4 to 1 1/2 inch — an eighth of an inch more. Both listings then add "up to 35 cm (13.8 in)", which is not a pipe diameter at all and appears on both pages
Heat resistance: Not stated separately from the measuring range. Klein positions this as the accessory that "extend[s] working temperature ranges for Klein's HVAC Digital Multimeters and Clamp Meters", and names the rest of the family: high temperature thermocouple wire, temperature probe and banana plug adapter
Amazon reference: B07B2PPBRB
EAN: 0092644690679

Type K, so it reads correctly on any type K meter
A clamp, which is what a pipe actually needs
A hundred degrees Celsius is the narrowest ceiling here

Best for: HVAC pipe temperatures on small-bore copper, read through a Klein or any other meter with a temperature function

≈ $27

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Specifications

Type and plug fit: Type K, stated. "Works with any digital multimeter or clamp meter that measures temperature", and Klein adds that its K-type accessories work with all Klein multimeters and clamp meters that measure temperature "as well as any other brand with meters that measure temperature". The banana plug adapter is NOT in the box: it is Cat. No. 69146, sold separately — which matters because this shelf's introduction says the plug is where fit fails
Probe style: A PIPE CLAMP, which is a fourth style this shelf's introduction does not name. It lists a bead for air, a flat pad for surfaces and a sheathed rod for immersion; a spring clamp that closes round a pipe reads the outside wall of a line you cannot immerse anything in. It is the dominant style in the American relevé for this shelf, because that is how a refrigeration circuit is diagnosed
Stated temperature range: −4 to 212 °F (−20 to 100 °C), stated. That is the NARROWEST range on this shelf: the published Taiss states −40 to 350 °C (-40 to 662 °F), the Nxtop 0 to 1100 °C (32 to 2012 °F), the Klein 69142 beside it 0 to 480 °C (32 to 896 °F), and the ZIBOO clamp that borrows this part number claims −40 to 200 °C (-40 to 392 °F). One hundred degrees Celsius is the top of it, which covers a heating flow and stops below a hot gas line
Stated accuracy: ±2%, stated — and then the sentence that makes it honest: "Thermocouple accuracy is dependent on the accuracy of the meter being used." Two probes on this shelf publish a figure at all — this clamp and the ZIBOO — and both add that caveat. It is the right way to put it: a thermocouple generates a voltage, and what turns that voltage into a number is the instrument
Cable length: 40 inches, 102 cm, flexible. The ZIBOO clamp states 39.78 inches for the same 102 cm (40.2 in), which is the same lead described to two decimal places. The published Taiss five-pack gives 3 m (10 ft), three times either clamp
Clamp capacity: Pipes from 1/4 to 1-3/8 inch diameter. The ZIBOO clamp claims 1/4 to 1 1/2 inch — an eighth of an inch more. Both listings then add "up to 35 cm (13.8 in)", which is not a pipe diameter at all and appears on both pages
Heat resistance: Not stated separately from the measuring range. Klein positions this as the accessory that "extend[s] working temperature ranges for Klein's HVAC Digital Multimeters and Clamp Meters", and names the rest of the family: high temperature thermocouple wire, temperature probe and banana plug adapter
Amazon reference: B07B2PPBRB
EAN: 0092644690679

What the maker puts in writing

“K-Type Thermometer, Pipe Temperature Clamp for HVAC”
“Measures temperature from -4 to 212-degrees F (-20 - 100-degrees C) with ±2% accuracy”
“Clamps around pipes from 1/4 to 1-3/8-Inch diameter”
“40-Inch (102 cm (40.2 in)) long flexible lead”
“Works with any digital multimeter or clamp meter that measures temperature”
“Thermocouple accuracy is dependent on the accuracy of the meter being used”
Banana plug adapter: Cat. No. 69146, separate · $26.98

A clamp is a fourth style

This shelf’s introduction names three.

“A bead for air, a flat pad for surfaces, a sheathed rod for immersion.”

A spring clamp that closes round a pipe is none of those, and it is the style that dominates the American relevé for this shelf.

Because that is how a refrigeration circuit gets diagnosed: suction line, liquid line, two clamps and a delta.

The narrowest range on the shelf

A hundred degrees Celsius at the top.

The published Taiss: −40 to 350 °C (-40 to 662 °F). The Nxtop: 0 to 1100 °C (32 to 2012 °F). The Klein 69142 next to it: 0 to 480 °C (32 to 896 °F).

And the ZIBOO clamp that borrows this part number: −40 to 200 °C (-40 to 392 °F).

One hundred covers a heating flow and a chilled return. It stops below a hot gas discharge line.

Two per cent, with the sentence that matters

“Thermocouple accuracy is dependent on the accuracy of the meter being used.”

A thermocouple generates a voltage. What turns that voltage into a number is the instrument, and on a multimeter the temperature function is usually the least accurate thing it does.

Two probes on this shelf publish a figure at all. Both add that caveat.

The adapter is not in the box

Cat. No. 69146, sold separately.

“The miniature flat plug that connects it is where fit fails.”

A meter with a dedicated thermocouple socket takes this directly. A meter that reads temperature through its 4 mm (0.16 in) inputs does not, and the part that bridges them is a separate order.

The ZIBOO copy includes one.

And “up to 35 cm (13.8 in)”

Which appears on this page and on the ZIBOO page, in both cases after a pipe diameter in inches.

One and three-eighths of an inch is 35 Millimeters.

Thirty-five centimeters is a pipe you would need both arms for.

Availability

On sale at around 27 € on the American Amazon store at the time of checking.

Prices and availability are what Keepa reported on the date this page was updated; both move.

Prices quoted in this text were read on 8 October 2026. The live price is at the top of the page.

What gets asked here

Why is the ZIBOO clamp cheaper and wider-ranging under the same part number?

That is the question this shelf cannot answer for you. The ZIBOO listing opens with "ZIBOO 69140", which is this Klein part number, and its reference field reads 69028+69146 — two more Klein catalog numbers, 69146 being the banana adapter Klein sells separately. It then claims −40 to 392 °F where Klein states −4 to 212 °F, and includes the adapter, for $14.99 against $26.98. Either the copy is built to a wider specification than the original it names, or the specification on the copy is not measured. Nothing on either page settles it.

Does ±2% mean the reading is within 2% of the truth?

No, and the listing says so in its own fifth bullet: "Thermocouple accuracy is dependent on the accuracy of the meter being used." The ±2% describes the probe's contribution. Your meter adds its own error on top, and on a multimeter the temperature function is usually the least accurate thing it does. For an absolute figure that matters, compare against a second probe. For a delta — the difference across a coil, which is what HVAC work actually needs — both errors largely cancel and the number is far better than ±2% suggests.

Will it fit my meter?

If your meter has a type K temperature function, electrically yes — type K is an international standard and the voltage curve is the same everywhere. The question is the connector. This clamp terminates in a thermocouple plug and the banana plug adapter that converts it to two 4 mm (0.16 in) sockets is Cat. No. 69146, sold separately. Meters with a dedicated thermocouple socket take it directly; meters that read temperature through their voltage inputs need the adapter. Check which your meter has before ordering, because that is the whole point this shelf's introduction makes about plugs.

Instruments this fits

More temperature probes

Klein Tools High-temperature type K thermocouple, 0 to 480 °C (32 to 896 °F)

Klein's high-temperature thermocouple — 480 °C (896 °F), a coiled lead, and no stated accuracy or probe style.

Type and plug fit
Type K, stated, and the ADAPTER IS INCLUDED — "with Adapter" is in the product title. That puts it with the ZIBOO clamp and against the Klein 69140, where the adapter is a separate part number. "Works with any digital multimeter or clamp meter that measures temperature"
Stated temperature range
32 to 896 °F (0 to 480 °C), stated. Nearly FIVE TIMES the ceiling of Klein's own 69140 pipe clamp, which stops at 100 °C (212 °F) — and Klein says so directly: these accessories "extend working temperature ranges for Klein's HVAC Digital Multimeters and Clamp Meters". It does not go below freezing, which the two pipe clamps on this shelf both do
Probe style
NOT STATED. This shelf's introduction makes probe style the thing you choose by the job — a bead for air, a flat pad for surfaces, a sheathed rod for immersion — and this listing says only "High Temperature Thermocouple". There is no bead, no pad, no sheath and no tip dimension anywhere on the page, which is the one specification a buyer needs to know whether it will sit on a flue or in it
Stated accuracy
NOT PUBLISHED. The listing gives only the caveat without the figure: "Accuracy of the thermocouple is dependent on the accuracy of the meter being used." Both pipe clamps on this shelf state ±2% alongside that sentence; this one states the sentence alone, at the highest price of the three Klein parts
Cable length
A COILED lead, 3 feet — the only coiled lead on this shelf, and shorter than either pipe clamp’s meter. Coiled matters on a hot job: a straight lead draped across a flue collects heat along its length, while a coil keeps the cable off the work and pulls back out of the way
Heat resistance
Implied by the 480 °C (896 °F) measuring range and not stated separately for the lead. Klein lists "High Temperature Thermocouple Wire" as a DIFFERENT accessory in the same family, which suggests the wire on this part is not itself the high-temperature item
Also stated
11 grams, the lightest probe weight published on this shelf. Klein names the rest of the K-type family on this page — temperature pipe clamp, temperature probe, high temperature thermocouple wire and banana plug adapter — which is the clearest accessory map any maker on this shelf publishes
Amazon reference
B07B2TW23J
EAN
0092644690686
- Four hundred and eighty degrees, five times Klein's own clamp
- The adapter is in the box
- No accuracy figure at all, at thirty dollars
Best for: Flue gases, hot gas lines and anything above the 100 °C (212 °F) ceiling of Klein's own pipe clamp

≈ $30
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Leopacat Type K thermometer with probe

A probe with its own readout: a handheld type K thermometer for measuring temperature without occupying a multimeter.

Amazon reference
B0CQJYQ1ZX (identical on 6 markets)
EAN
7362571391967
Thermocouple type
Type K
Supplied
handheld thermometer with probe
Functions
wide operating range
- Comes with its own display, so it does not tie up a multimeter for the duration of a measurement
- Type K, so any standard probe fits it
- No accuracy figure published
Best for: Leaving on a monitored point while the multimeter goes on doing something else.

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Nxtop Sheathed type K probe, 1100 °C (2012 °F), 3 × 200 mm (0.12 × 7.87 in)

The cheapest probe on this shelf, the hottest, and the only one that publishes a dimension for its plug.

Type and plug fit
Type K with a MINIATURE K-TYPE CONNECTOR, and the fork terminal spacing is published: 5 mm (0.20 in), 0.197 inch. It is the ONLY probe on this shelf that gives a dimension for its plug, and this shelf's introduction says in so many words that "the miniature flat plug that connects it is where fit fails". A nine-dollar probe answers the shelf's stated failure point, and the twenty-seven and thirty-dollar Kleins do not
Probe style
A SHEATHED ROD, 3 mm (0.12 in) diameter by 200 mm (7.87 in) long — the immersion style this shelf's introduction names. Total length 29.5 cm (11.6 in) with the cable gland, so roughly 9 cm (3.5 in) of that is body rather than probe. It is the only product on this shelf whose probe geometry is fully dimensioned
Stated temperature range
0 to 1100 °C (32 to 2012 °F), stated. That is the HIGHEST range published by any probe on this shelf: the Klein 69142 reaches 480 °C (896 °F), the published Taiss 350 °C (662 °F), the ZIBOO clamp 200 °C (392 °F) and the Klein 69140 clamp 100 °C (212 °F). Only the Fieldpiece ST4 meter claims more, at 1300 °C (2372 °F), and that is the instrument's range rather than a probe's. Like the Klein 69142 it does not go below zero
Cable length
30 cm (11.8 in), 12 inches, stated "not stretched" — the SHORTEST on this shelf by a wide margin. The two pipe clamps give 102 cm (40.2 in), the Klein 69142 three feet, the published Taiss 3 m (10 ft). Thirty centimeters puts your hand about a foot from whatever is at 1100 degrees, which is the real limit of this probe and has nothing to do with its sensor
Stated accuracy
NOT PUBLISHED, and no tolerance class is named either. Only the two pipe clamps on this shelf publish a percentage at all; this one publishes nothing. At $8.99 that is the trade being offered, and the sentence both Klein clamps print applies here too whether or not it is written: what turns the junction voltage into a number is your meter
Heat resistance
Implied by the 1100 °C (2012 °F) range for the sheath, and unstated for the cable. The listing describes the materials only as "Electronic Parts, Plastic" and the color as yellow, which is the standard color coding for type K in American practice. A plastic-insulated 30 cm (11.8 in) lead is what sets the working distance, not the stainless rod
Also stated
78 grams, against 11 g (0.4 oz) for the Klein 69142. The listing is written as a parts-catalog entry rather than marketing — product name, model, type, color, material, range, weight, fork spacing, probe dimensions, total length, cable length, package contents — and that is why it publishes more dimensions than anything else on this shelf
Amazon reference
B07DNGWLFS
EAN
0703064924915
- Eleven hundred degrees for nine dollars
- The only plug dimension published on this shelf — 5 mm (0.20 in)
- Thirty centimeters of cable, at 1100 degrees
Best for: Kiln, furnace, forge and flue work, where 1100 °C (2012 °F) is the specification and a 30 cm (11.8 in) cable is enough

≈ $9
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Elsewhere in the spares drawer

AUTOOL Test lead kit, 68 pieces

A 68-piece kit in silicone rather than PVC — the insulation that stays flexible hot and cold, and the reason a good lead feels different in the hand.

Amazon reference
B0CXDTL7QH (identical on 6 markets)
EAN
6972697788988
Supplied
68 pieces
Insulation test
silicone insulation
Construction and safety
universal instrument fit
- Sixty-eight pieces, covering essentially every connector a bench needs
- Silicone insulation, stated as flexible and durable — the better material for test leads
- No measurement category or voltage published
Best for: A bench where the measurement is different every time and the connector is never the one you have.

≈ $62
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Fluke TwistGuard leads with wear indication

The only leads here that show you their own wear — and, at $33.83, one of two sets that never name a category.

Stated rating
NO CATEGORY NAMED. The listing says the TwistGuard shroud "meets the highest electrical safety requirements" and never writes CAT II, III or IV, nor a voltage. This shelf's tag line is "the leads carry the same CAT rating as the meter, or they do not", and at $33.83 it is among the most expensive sets here — the Bionso at $29.99 also names no category. Three Klein sets here publish CAT III 1000 V and CAT IV 600 V in a bullet
Insulation
DOUBLE INSULATED SILICONE, and the second layer does a job: "WearGuard lead wire wear indication. Each test lead is covered by two layers of silicone insulation; inner contrasting color is exposed when the leads are nicked, scuffed, or otherwise damaged and in need of replacement." Stated to withstand high temperatures and remain flexible in cold, with no figures. Extra-heavy-duty strain relief at both the probe end and the plug end
Plugs and tips
2 mm (0.08 in) probe tips with a PATENTED TWISTGUARD EXTENDABLE TIP SHROUD: twist the shroud and the amount of exposed metal changes, so the same probe suits a shrouded terminal and an open test point. Removable 4 mm (0.16 in) LANTERN TIPS thread on. The input plugs are "standard 4 mm (0.16 in) SHROUDED banana plugs" — the only listing on this shelf that calls its plugs shrouded, which this shelf's introduction names among its five comparisons
Durability
TESTED BEYOND 30,000 BENDS WITHOUT FAILURE, stated. It is the only durability figure published on this shelf, and it is the right figure for the part this shelf's introduction calls "the part of a meter that gets stood on". The strain relief is called out separately at both ends, which is where a lead actually dies
Length
NOT PUBLISHED. Every other set here that states a length gives one — 91 cm (35.8 in), 103 cm (40.6 in), 104 cm (40.9 in), 109 cm (42.9 in), 125 cm (49.2 in), 1 m (3 ft) — and this one does not, on a page that otherwise publishes more than any of them
Also stated
120 grams. Fluke writes that the TL175 "are the only test leads as tough as your meter", which is a claim about the pairing rather than a specification. The whole listing is built on two named technologies, a bend count and a shroud, and omits the category and the length
Amazon reference
B005CTI592
EAN
0021111461641
- Two silicone layers, the inner one a wear warning
- An adjustable tip shroud — no other lead here has one
- No measurement category anywhere on the page
Best for: Anyone who follows this shelf's buying tip literally, because these leads do the inspection for you

≈ $34
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KAIWEETS Test lead kit with clips, probes and hooks

Leads with three swappable ends, so one set covers a terminal, a component leg and a wire you cannot hold — in cable stated to stay flexible in the cold.

Amazon reference
B07SD3L9HR (identical on 6 markets)
EAN
0824007634156
Construction and safety
Three interchangeable connectors · double-insulated · flexible at low temperature
- Three interchangeable connectors: crocodile clips, needle probes and mini clamps
- Double-insulated material, stated as staying soft and elastic at low temperatures
- No measurement category or voltage published
Best for: Bench and vehicle work where the third hand is the problem.

≈ $16
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All temperature probes

Klein Tools Type K pipe clamp, −20 to 100 °C (-4 to 212 °F)

Specifications

What the maker puts in writing

A clamp is a fourth style

The narrowest range on the shelf

Two per cent, with the sentence that matters

The adapter is not in the box

And “up to 35 cm (13.8 in)”

Availability

What gets asked here

Instruments this fits

More temperature probes

Klein Tools High-temperature type K thermocouple, 0 to 480 °C (32 to 896 °F)

Leopacat Type K thermometer with probe

Nxtop Sheathed type K probe, 1100 °C (2012 °F), 3 × 200 mm (0.12 × 7.87 in)

Elsewhere in the spares drawer

AUTOOL Test lead kit, 68 pieces

Fluke TwistGuard leads with wear indication

KAIWEETS Test lead kit with clips, probes and hooks