TempPro TempDip 1 Sec Digital Candy Thermometer with Pot Clip & 10" Probe, Waterproof Instant Read Review (2026)
Updated September 21, 2026 · Research-based review
Our verdict
This TempPro TempDip thermometer pairs a pot clip with a 10 inch probe, an IPX5 waterproof body, and a range from negative 58 to 572 degrees Fahrenheit. The manufacturer's own spec sheet lists a 5 second response time, not the near-instant read implied by the product's name, worth knowing before fast checks.

TempPro TempDip digital candy thermometer with 1 Sec reading, pot clip and 10" waterproof probe.
Price range: See on Amazon
What we liked
- + Rotating backlit display swivels about 90 degrees for easy reading from any angle
- + Waterproof design survives splashes during soap making
- + 10" probe reaches into deep lye or oil containers
Trade-offs
- - Digital electronics need batteries that eventually run out
- - Should be kept separate from food use after soap making
Core features
This is the TempPro TempDip model TP510, previously sold under the ThermoPro name, and the Amazon listing describes it as having a 10 inch probe with a pot clip for hands-free use over a pot or bowl. The manufacturer's own product page lists a temperature range of negative 58 to 572 degrees Fahrenheit, or negative 50 to 300 degrees Celsius, an NTC sensor, and a rotating backlit LCD display that can be angled about 90 degrees for easy reading from different positions around a busy workspace. The unit runs on a single AAA battery and carries a 3 year warranty once registered with the manufacturer, a useful backstop for a tool that will see repeated exposure to lye and hot oils over its working life.
Waterproof rating for a soap workspace
The manufacturer rates the thermometer body as IPX5 waterproof, meaning it can be rinsed clean under running water, which matters in a soap-making setup where the probe regularly moves between lye solution, melted oils, and a sink for cleaning between checks. A thermometer that cannot handle rinsing tends to accumulate residue that is awkward to wipe off a probe, so the waterproof rating is a practical fit for the back and forth cleaning that soap making involves, rather than a feature aimed only at outdoor grilling or frying use in a kitchen.
Reading speed, according to the manufacturer
The product's own name promises a 1 second read, and that framing appears throughout its marketing, but the manufacturer's own technical specification page for this model lists a response time of 5 seconds rather than 1 second. This is worth flagging for a soap maker who is timing a trace or a lye and oil combination closely, since a 5 second settling time, while still faster than a basic dial thermometer, is not the same as a true instant read. Either way, it remains quick enough for typical soap-making checks, just not as fast as the product name alone suggests.
Fit for lye and oil temperature checks
A 10 inch probe, as described in the listing, gives enough reach to check temperatures near the bottom of a deep lye pitcher or a tall oil pot without tipping the container, which is a common frustration with shorter kitchen thermometers when working with cold process soap recipes that call for matching lye and oil temperatures closely. The pot clip lets the probe stay in position while a maker's hands are free for stirring or measuring, and the wide temperature range comfortably covers both cool lye solutions and hot melted oils in the same tool, without needing to switch instruments.
Bottom line
This thermometer suits a soap maker who wants one waterproof, wide-range tool to track both lye and oil temperatures with a hands-free pot clip, and the 3 year warranty and AAA battery design point to a tool meant for repeated regular use. The main thing to keep in mind is that the manufacturer's own spec sheet lists a 5 second response rather than a true 1 second read, so it is a reliably quick instant-read style thermometer rather than an instantaneous one. Soap made from lye and oils should never be tasted or handled as food once mixed, so this thermometer should stay dedicated to soap use and be kept separate from any device still used for cooking.
Frequently asked questions
How long is the probe on this thermometer
The Amazon listing describes it as a 10 inch probe, long enough to reach into deep lye or oil containers.
Is this thermometer really an instant, 1 second read
The product name markets a 1 second read, but the manufacturer's own spec sheet for this model lists a 5 second response time.
Can this thermometer get wet or be rinsed off
Yes, the manufacturer rates the body as IPX5 waterproof, so the probe can be rinsed under running water between checks.
What temperature range does it cover
The manufacturer lists a range of negative 58 to 572 degrees Fahrenheit, covering both cool lye solutions and hot melted oils.
Prices change often, so check the current price and availability on Amazon.
Check price on AmazonSoap Making Nest may earn a commission from the link above.