DS18B20 1-Wire Waterproof Digital Temperature Sensor with 3 metre cable

DS18B20 1-Wire Waterproof Digital Temperature Sensor with 3 metre cable

SKU: GJS-003

DS18B20 digital thermometer in waterproof ⌀6 × 30 mm probe with 3 m cable. -55 to 125 °C range with ±0.5 °C accuracy from -10 to 85 °C.

  • Manufacturer: GJY Electronics
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The sensor is equipped with a DS18B20 1-Wire temperature sensor embedded into the probe with a 3metre cable and 3 wires at end. In manufacturing the temperature probe a special process is used which ensures the internal sensor is thermally coupled to the tube wall, this helps ensure rapid thermal response to changing conditions.

The DS18B20 digital converts the temperature at sensor for up to 12 bits (9 bits primary temperature measurement plus an overflow counter) or 0.0625 °C of resolution. It features an alarm function with non-volatile user-programmable upper and lower trigger points. Each sensor has a unique serial number and multiple sensors can share a single bus. The DS18B20 communicates over a 1-Wire® bus that by definition requires only one data line (and ground) for communication with a central microprocessor. It has an operating temperature range of -55 to +125 °C and is accurate to ±0.5 °C over the range of -10 to +85 °C. In addition, the DS18B20 can derive power directly from the data line ("parasite power"), eliminating the need for an external power supply.

Applications where this feature is useful include HVAC environmental controls, sensing temperature inside buildings, equipment or machinery  and process monitoring and control.

  • Submersible, rugged, wide temperature range probe suitable for use in harsh environments.
  • 3 m, HYBV polypropylene insulated PVC sheathed cable
  • 30 mm stainless steel probe.
  • DS18B20 digital temperature sensor.
  • ±0.5 °C Accuracy from -10 to +85 °C
  • Uses 1-Wire communication protocol.
  • Chemical resistant and waterproof steel probe and cable.
  • No external power required, or can be optionally powered for faster operation.
  • Automatic unique device addressing.
  • Applications include thermostatic controls, industrial systems, consumer products, thermometers, or any thermally sensitive system.


  • Ground: White 
  • Data: Red
  • Power: Green 
  • Temperature Range: -55 to 125 °C
  • Resolution: Up to 12 bit (0.0625 °C)
  • Accuracy (-10 to 85 °C): ±0.5 °C
  • Accuracy (-55 to 125 °C): ±2.0 °C
  • Supply Voltage: 3 to 5.5 V
  • Active Current: 1 to 1.5 mA
  • Standby Current: 100 to 150 nA
  • Probe Dimensions: L: 30 mm, D: 5.6 mm
  • Cable Length: 15 m
  • Cable End: 3 wires
    • SKU
    • Weight
      0.33 kg
    • Dimensions (L x W x H)
      24 x 9 x 5 cm

Faulty Goods and Warranty

Where such goods have been supplied we undertake to repair or replace them as quickly as possible.Prior to returning faulty items, please contact us with a description of the fault as one of our engineers might be able to assist you by resolving the issue over the phone.
A Warranty form must be filled out and returned with any goods.

Our standard warranty period is 12 months from the date of purchase unless stated otherwise.

Other warranty periods:

Labjack Products: 5 Years
Atop Products: 3 Years
MeanWell Products: 3 Years
Terracom Products: 3 Years

Warranty is subject to us being satisfied that a defect was caused by defective workmanship or materials and was not caused by or was not substantially contributed to by other factors beyond our control including incorrect installation, alterations or modifications of the product not recommended by the manufacturer.

Returns Policy

If you are dissatisfied with our goods you may return them within 14 days of the dispatch date. Contact us for an authorisation and we will refund your purchase less shipping costs and restocking fees. All returned goods MUST be in AS NEW condition including ALL PACKAGING and DOCUMENTATION / MANUALS etc.

Please note:

  • The product returned will attract a 20% restocking fee.
  • The customer must pay the delivery costs.
  • Non standard, custom made or a specially manufactured or imported products are not returnable.
  • Semiconductors, books and software are not refundable

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By placing an order with Ocean Controls, you agree to be bound by our Terms and Conditions of Trade.

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