Take temperature readings from a distance, or underwater, using this Waterproof DS18B20 Digital Temperature Sensor. It's got a 90cm (0.9m) cable with a stainless steel, PVC coated probe at the end. You'll be able to use it with any 3V-5V system, and take temperature readings with an accuracy of 9-12 Bits (configurable in code). The best part is that it's digital, meaning you won't suffer any signal degradation over the longer distance.
- Waterproof - Take the temperatures of liquids/moist environments with the stainless steel probe. It's shrouded in PVC plastic too, meaning it will hold it's own in temperatures up to 100 degrees Celsius.
- Temperature - Usable from -55 degrees Celsius to 125 degrees Celsius. Accuracy of ~0.5 degrees.
- Digital - The digital interface used to relay the readings guarantees minimal signal degradation over the longer distances (~90cm for this standard cable)
- 1-wire interface - You can have multiple DS18B20s connected to the same central micro-controller pin as each device has a unique identifier hard-coded in.
- Long range - 1.5 meters of cable by default, but you can make it longer if needed!
- Maker friendly - The DS18B20 chip is able to be powered with 3v - 5.5v which is perfect for maker platforms (Arduino, Raspberry Pi, etc)
This sensor is simple, you've got 3 wires (Power, Ground and Data). You simply need to connect the data pin to an input pin on your micro-controller (Arduino, etc) and the power and ground to power and ground!
You'll also need to connect a resistor between power and signal wires, as shown in the circuit diagram on the Sensor's wiki page.
You can simply use the One-wire library for any Arduino projects (See the examples below for more in-depth information). We've even made our own tutorial on using this sensor with a Raspberry Pi! As always, we're full time maker's with experience using this gear and we're here to help. Make a post in our forum to get more information on anything maker related.
- Compatible with 3.0V to 5.5V systems (Arduino, Raspberry Pi, micro:bit, etc)
- Within 0.5 degrees Celsius accuracy
- Recommended usable temperature range: -55 to 125 degrees Celsius
- Select-able 9-12 bit resolution (Factory Default at 12-bit)
- 1 Wire Interface
- Unique 64 bit ID for each sensor
- Query time is less than 750ms
- Stainless steel tube 6mm diameter by 35mm long
- Cable diameter: 4mm
- Cable Length: 90cm
This product is listed in:
Documentation and Resources:
- Getting Hands-on with Sensors
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- Temperature Sensing with Particle
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- Micro:bit Temperature and Humidity Sensing
The Micro:bit has the ability to measure temperature by sensing the temperature of the silicon die inside the main CPU. This works because the Micro:bit runs cold, and the temperature of the CPU is usually a good approximation of ambient te...
- Temperature Sensing with the TMP36 and Pycom
The TMP36 is a low cost, easy to use sensor that fits well with any project. With the TMP36, adding temperature sensing to your Pycom project is easy! In this tutorial, we will use the Pycom Lopy4, and send our measured data to The Things Network via...
- The Maker Revolution
The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...
- Arduino Cooking Alarm with DS18b20 Sensor
Today we will be making an Arduino circuit that will start playing a noise if the water (or surrounding environment) reaches a certain temperature, in our case, that temperature will be 100° Celsius. This is a useful little project that takes barely any time at all but will be extremely useful to know when your pasta is ready, or when your kettle is ready to pour some coffee. In this project, we will be showing you how...
- Rain Gauge Data Logger
Summary A Raspberry Pi 3B is used to collect digital counts from an electronic rain gauge (1mm of rain per reed switch closure by magnetic see-saw). It has been running without issues for over 12 months. A UPS powers the Pi so it is immune from short power glitches. The total count is displayed on an LCD screen with reset and inc/dec test buttons. “To HTML” and “To LCD” routines are also included to simp...
- ThingSpeak temperature & pressure logger
This project logs temperature and pressure observations to a ThingSpeak channel using an ESP8266 WiFi module.
- Basic Weather Station
The aim of this project was to provide a cost effective and basic weather station for my backyard that can upload readings to Weather Underground. Part 2 of the project will be using this local data to trigger activities in and around my house.
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We deliver Australia-wide with these options:
- $3 for Small Items (3-7 days, not tracked, only available on selected small items)
- $6.95 for Standard Post (2-4 days, tracked)
- $9.95 for Express Post (Overnight for most of Australia, 2+ days for rural, tracked)
- Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)
International Orders - the following rates are for New Zealand and will vary for other countries:
- $11.49 for Pack and Track (3+ days, tracked)
- $16.50 for Express International (2-5 days, tracked)
If you order lots of gear, the postage amount might increment based on the weight of your order.
Our physical address (here's a PDF which includes other key business details):
Unit 18, 132 Garden Grove Parade
Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.