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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.

Klein Tools 69142 high temperature type K thermocouple with coiled lead and adapter

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
Check price on Amazon

Specifications

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

What the maker puts in writing

  • “K Type Thermocouple, High Temperature Thermocouple Measures 32 to 896 Degrees, with Adapter”
  • “Measures temperature from 32 to 896° F (0 to 480° C)”
  • “Coiled lead with length of 3 feet”
  • “Excellent for higher temperature measurements for HVAC applications”
  • “Works with any digital multimeter or clamp meter that measures temperature”
  • “Accuracy of the thermocouple is dependent on the accuracy of the meter being used” — with no figure
  • 11 g (0.4 oz) · $29.99

NO probe style. NO tip dimension. NO accuracy figure.

Five times the ceiling of Klein’s own clamp

The 69140 pipe clamp stops at 100 °C (212 °F).

This reads to 480.

Klein says why, in its own words: these accessories “extend working temperature ranges for Klein’s HVAC Digital Multimeters and Clamp Meters”.

A flue. A hot gas discharge line. Anything a clamp rated to boiling water cannot be put near.

What it gives up is the bottom: nothing below freezing, where both pipe clamps on this shelf reach −20 and −40.

A coiled lead, alone on this shelf

Three feet, coiled.

A straight cable lies in the heat. Three feet draped across a flue picks up temperature along its whole length, and a connector sitting in a hot spot makes a second junction with a voltage of its own.

A coil holds the cable up, retracts out of the work, and does not get stood on.

It is also shorter than either clamp — 3 ft against a meter on both and 3 m (10 ft) on the published Taiss. On a hot job that is the right trade.

And no shape

“High Temperature Thermocouple.”

This shelf’s introduction chooses style by the job: a bead for air, a flat pad for surfaces, a sheathed rod for immersion.

This page names none of them. No tip diameter, no sheath length, no bead.

At 480 °C (896 °F) the difference between a probe that goes INTO a flue and one that presses ONTO a pipe is not a detail.

The caveat without the figure

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

Both Klein pipe clamps print that sentence AFTER a ±2%.

This one prints the sentence alone, on the most expensive of the three Klein probes here.

Klein maps the family, which nobody else here does

Temperature pipe clamp. High temperature thermocouple wire. Temperature probe. Banana plug adapter.

Four named parts, on the page of the fifth.

Note what that list implies: the high-temperature WIRE is a different product. The wire on this one is not itself the high-temperature item.

Availability

On sale at around 30 € 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

What shape is the tip?

The page does not say, and it is the omission that matters most. This shelf's introduction chooses probe style by the job: a bead responds fastest in air, a flat pad holds against a surface, a sheathed rod goes into a flow. "High Temperature Thermocouple" describes the rating and not the geometry. For a flue gas reading you want something that can go INTO the stream; for a hot gas line you want something that clamps or presses ONTO it. Ask the seller which this is before ordering, because at 480 °C (896 °F) the wrong geometry is not a minor inconvenience.

Why does it have no accuracy figure when the clamps do?

Both Klein pipe clamps state ±2% and then add that the real accuracy depends on the meter. This one gives the caveat and omits the figure. A reasonable reading is that a wide-range high-temperature thermocouple has a percentage error that varies enough across 480 degrees to be awkward to state as one number — type K tolerance classes are typically given as a percentage of reading above a certain point and a fixed figure below it. That is a defensible reason to omit it and still leaves you buying a thirty-dollar sensor with no published tolerance.

Why is a coiled lead better here?

Because a straight cable lies in the heat. Three feet of lead draped across a flue or along a hot gas line picks up temperature along its whole length, and the parts of a thermocouple circuit outside the junction are not supposed to be hot — a second junction at a connector in a hot spot adds a voltage of its own. A coil holds the cable up and away, retracts out of the work, and does not get stood on. It is also shorter than either pipe clamp’s meter, which on a hot job is the right trade.

Instruments this fits

More temperature probes

  • Leopacat TM-902C handheld thermocouple thermometer with its wire probe

    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.

    Check price on Amazon
  • Nxtop WRNK-187 type K thermocouple probe with yellow miniature connector

    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
    Check price on Amazon
  • Proster dual-channel thermometer with two type K probes attached, showing both readings

    Proster Two-channel thermocouple thermometer

    The instrument that measures a difference rather than a temperature: two channels, with T1−T2 displayed directly instead of subtracted by hand.

    Amazon reference
    B071RNW2C6 (identical on 6 markets)
    EAN
    0711583415319
    Channels
    Two channels · T1 / T2 / T1−T2
    Also stated
    J, K and T types
    Functions
    MAX, MIN, AVG
    • Two channels with a direct T1−T2 display — the measurement most temperature work actually needs
    • Accepts J, K and T type probes across very wide stated ranges
    • No accuracy figure published

    Best for: Flow and return, inlet and outlet, before and after — anything where the answer is a difference.

    Check price on Amazon

Elsewhere in the spares drawer

  • Fluke TL175 TwistGuard test leads with extendable tip shrouds

    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
    Check price on Amazon
  • KAIWEETS test lead kit laid out with crocodile clips, needle probes and mini hooks

    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
    Check price on Amazon
  • Klein Tools 69381 heavy-duty alligator clip test leads

    Klein Tools Heavy-duty clip leads, 18 AWG, 3 ft

    A clip-only lead in 18 AWG — the one set here that tells you the size of the wire inside it.

    Stated rating
    CAT III 1000 V / CAT IV 600 V, stated. The same pairing as the two other Klein sets, and the three of them are the only CAT IV items on this shelf. This shelf's introduction explains the arithmetic: the rated pair is the lower of meter and leads
    Insulation
    18 AWG DOUBLE INSULATED WIRE, stated — and the gauge is what makes this listing unusual. No other product on this shelf publishes a wire gauge at all. What it does NOT say is the material: not silicone, not PVC, just double insulated, as on both other Klein sets
    Plugs and tips
    Banana plug at one end, HEAVY-DUTY ALLIGATOR CLIP at the other, right-angle at the plug. There is no probe tip: this is a clip-only lead, which is a different purchase from the 69410 beside it where the clips unscrew. No shrouding is mentioned
    Length
    3 feet, 91 cm — the shortest of the three Klein sets and the shortest stated lead on this shelf. Against the PUKAIBUL's 125 cm (49.2 in) and the published PeakTech's 120 cm (47.2 in), that is a third less reach
    Stated application
    INSULATION RESISTANCE TESTING, named in a bullet as "a perfect application for heavy-duty leads". That is a specific and sensible claim: an insulation test applies hundreds of volts between a conductor and earth for a minute at a time, which is a job for a clip that stays put rather than a probe held by hand
    Supplied
    One pair of universal right-angle leads with heavy-duty clips. The clips are not described as removable, which is the trade against the 69410: more clip, less versatility, same price to within two cents — $19.99 against $19.97
    Amazon reference
    B09YTDKDPQ
    EAN
    0092644693816
    • Eighteen AWG published, alone on this shelf
    • CAT III 1000 V and CAT IV 600 V
    • Clips only — there is no probe tip

    Best for: Insulation resistance testing and any reading you need to leave clipped on while you work

    ≈ $20
    Check price on Amazon

All temperature probes