NEW PRODUCT – Waterproof DS18B20 Digital temperature sensor + extras

Waterproofds18B20 Lrg

NEW PRODUCT – Waterproof DS18B20 Digital temperature sensor + extras. This is a pre-wired and waterproofed version of the DS18B20 sensor. Handy for when you need to measure something far away, or in wet conditions. While the sensor is good up to 125°C the cable is jacketed in PVC so we suggest keeping it under 100°C. Because they are digital, you don’t get any signal degradation even over long distances! These 1-wire digital temperature sensors are fairly precise (±0.5°C over much of the range) and can give up to 12 bits of precision from the onboard digital-to-analog converter. They work great with any microcontroller using a single digital pin, and you can even connect multiple ones to the same pin, each one has a unique 64-bit ID burned in at the factory to differentiate them. Usable with 3.0-5.0V systems.

In stock and shipping now.


Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in! adafruit.com/mastodon

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



4 Comments

  1. I wonder if this would work for a sous vide / slow cooker application. With wet cooking, the limit is pretty much 100C. My biggest concerns are how good the waterproofing is. Sometimes they say waterproof, but only for a certain amount of time of submersion. Also, the PVC might not be food grade.

    Anybody have a good handle on these concerns?

  2. These are not food-grade but if your food is wrapped in plastic it doesn’t matter anyways right? These should definately be waterproof enough for sous-vide application – and it rarely gets to even boiling!

  3. I’ve been using a homemade waterproof DS18B20+ probe for sous-vide. The sensor is great, very responsive and accurate. However, I have been keeping my probe wrapped up watertight in foil (replace it with every use because foil deteriorates quickly in warm water.) I learned the hard way that all kinds of nasty plastic stuff can penetrate foodsaver bags and make the food taste and smell awful. The bags are quite permeable by various compounds even though they are airtight. (Odors and flavors from spices permeate these bags, too.)

    I bought one of these for testing because it’s a lot prettier than my homemade probe. But I would be very careful because you never know what will end up in your food.

    I designed an RTD interface for my controller but sadly I’ve yet to get the kind of stability from that that these sensors provide.

    Maybe you guys could offer a version with a PFA cable/jacket? I’d gladly pay a lot more for that.

  4. Hmm, good point. how about using something like this

    http://www.mouser.com/ProductDetail/Qualtek/Q-PTFE-6AWG-02-QB48IN-5/?qs=sGAEpiMZZMutDkoVpcgZZhB%252b3S%252bNaCdJodSJEjCphlc%3d

    to cover the nonstainless part of the sensor? we could send you a 6″ piece if you’d like to try it out

Sorry, the comment form is closed at this time.