Waterproof DS18B20-Compatible Temperature Sensor with Resistor - The Pi Hut
Waterproof DS18B20-Compatible Temperature Sensor with Resistor - The Pi Hut
Waterproof DS18B20-Compatible Temperature Sensor with Resistor - The Pi Hut

Waterproof DS18B20-Compatible Temperature Sensor with Resistor

The Pi HutSKU: 102835
(36 Reviews)
£3.50
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When you need to measure temperature, the DS18B20 is a firm favourite. Easy to code and with an abundance of examples on the internet, it's a go-to temperature sensor!

This particular sensor is a pre-wired, waterproof version with a DS18B20-compatible sensor in the tip - great for measuring the temperature of liquids, or simply something further away from your microcontroller. These are a digital sensor so you don't have to worry about signal issues over longer distances.

As the coating/exterior is made of PVC, we suggest limiting the submerged liquid temperature to 100°C to stay on the safe side. Don't use it in salt water or other corrosive liquids. Not IP rated or guaranteed for long-term/high-pressure usage.

These sensors are quite precise (±0.5°C usually and can give up to 12 bits of precision from the onboard digital-to-analogue converter.

They use the Dallas 1-Wire protocol, so data is transferred over a single IO pin,  and they're sable with 3-5V systems. Want something simpler than 1-wire? Maybe try the TMP36 instead.

A 4.7K resistor is included to use as a pull-up for fitting between the VCC and data pin

We toss in a 4.7k resistor, which is required as a pullup from the DATA to VCC line. For Arduino-compatible devices, you can get started using the Dallas Temperature Control Arduino library which also requires the OneWire Library.

Specifications

  • Stainless steel tube 6mm diameter by 30mm long
  • Cable length: 91cm, 4mm diameter
  • Contains DS18B20-compatible temperature sensor
  • Red connects to 3-5V, White/Blue/Black (varies by batch) connects to ground and Yellow/White (varies by batch) is data.

DS18B20 Specifications

  • Sensor temperature range: -55 to 125°C (stick to under 100°C due to the PVC coating!)
  • 9 to 12-bit selectable resolution
  • Uses 1-Wire interface- requires only one digital pin for communication
  • ±0.5°C Accuracy from -10°C to +85°C
  • Temperature-limit alarm system
  • Query time is less than 750ms
  • Usable with 3.0V to 5.5V power/data

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    Waterproof DS18B20-Compatible Temperature Sensor with Resistor - The Pi Hut
    Waterproof DS18B20-Compatible Temperature Sensor with Resistor - The Pi Hut
    Waterproof DS18B20-Compatible Temperature Sensor with Resistor - The Pi Hut
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