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Extech TM20 Waterproof Temperature Indicator

Free shipping on orders over $29.99

$29.36

$ 13 .99 $13.99

In Stock

1.Style:Tm20


About this item

  • Measures temperature from -40°F to 158°F (-40°C to 70°C)
  • 1.8°F/1°C basic accuracy with 0.1° max resolution
  • Audible and visual alarm alerts when temperature level is higher or lower than the user programmed


Compact Waterproof Temperature Indicator with Stainless Steel Probe. Includes 0.78" (20mm) stainless steel probe with 9.6ft (2.9m) cable


Volker Geier
Reviewed in Germany on January 31, 2025
Super
W Méndez
Reviewed in the United States on January 3, 2025
Estoy muy satisfecho con el producto es una herramienta muy práctica se los recomiendo tiene más de una función para medir temperatura de verduras frutas y más...
S. Vatte
Reviewed in France on October 13, 2024
Fait le job. Le fil de la sonde est long. Elle peut être positionnée au cœur des aliments. J’en ai acheté 2.
LifeGirl
Reviewed in the United States on January 29, 2024
This is my second one (accidentally threw the other one away). I did an accuracy test -- put the needle in some boiling water and it was 210. So two degrees off. I only use it for cooking so 2 degrees is not a big deal. Great product.
Joan Manel
Reviewed in Spain on November 17, 2022
pantalla con buena lectura y a 21.0º muy buena precision ( espero que otros vendidos a más personas cunplan igual )Para mi gusto le falta desconexion automatica ( para conservar pila )
Liam
Reviewed in the United States on February 27, 2020
Great, just what I needed, waterproof and with a long cable
Goanna
Reviewed in the United States on August 4, 2019
I use this for tracking water temperature in the lake.It is easy to read and reliable.This is the second of these devices I have purchased. The first one lasted 3-4 years before the temperature reading became unreliable. It will not last forever but is one of the few devices on the market that will accurately monitor lake water temperature and the annualized cost is OK.
A S R
Reviewed in India on March 26, 2017
Nice device.Quite well made too.Hope its accurate.I use it to monitor the grill temp.of my airconditioner.Worth the price,an American brand,though as usual made in China.
Satinder singh
Reviewed in Canada on December 14, 2017
Good reliable product, old one got damaged accidentally, got this one with ease from amazon
Ken adams
Reviewed in the United States on November 22, 2017
I installed it in my work truck and it is very accurate. Wish it used standard batteries.
James P. Waltz
Reviewed in the United States on January 28, 2017
I do survey work on HVAC systems that are having troubles. I used a Cooper Industries digital thermometer for years. Still have it. This guy is nice because it updates rapidly, and you can easily tell when it has reached equilibrium with the measured fluid.The folding feature is nice as the device turns off when you fold in the probe. Saves on batteries! Also, when sticking this guy into a flex duct or a flex connector in rigid duct, leaving is half unfolded, allows you to let the unit hang, so you don't have to be holding it all the time.Some reviewers complained that it did not come to equilibrium quickly enough. Well, to get that kind of response time requires that you have virtually no mass in the probe - which means you are stuck with the end of a thermocouple wire. Great for measuring free air or a pot of water. But if you have to stick the probe into a flex duct or flex duct connector, or a Pete's Plug in piping, then you're going to have to have a sturdy probe. This one does come to equilibrium quickly, so I find those complaints without merit.I don't give 5's casually. This is a good product.
My Eyes Are Up Here!
Reviewed in the United States on December 20, 2015
If you are looking for a device that alerts you when a temperature falls outside of a given range, keep looking.Other than my 100% regret making this purchase, I regret more that I waited longer than 30 days to try this out and now I can't return it.1) 24 hours after I removed the plastic thing that activates the battery, the low battery indicator turned on. Really? The included battery is only good for a single day?2) The unit is not intuitive at all. You will never be able to program it without the included booklet.3) I bought this product to alert me if the freezer quits working, and after programming, it did sound an alarm after I pulled the probe from the freezer- once. It alarms one time, for up to 1 minute, and then it is forever silent. This "feature" is documented in the instructions, however was not on the item listing when I bought it. So if the freezer quits while you are at work, you'll never know. What is the point of this alarm feature? If I could spend 24 hours a day next to my freezer, I could just look at the light to tell whether or not it is on.If the item description on the listing gave any indication that this unit only alarms once I would have never bought it. At least now you have been warned.
A reader from Houston, TX
Reviewed in the United States on November 30, 2014
Does what it is designed to do and appears to be accurate. The display is larger than I expected and clearly readable. There does not seem to be a way to turn off the beep that it emits when a button is pressed.