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OW-TEMP-B3-12xA - Temperature Probe

OW-TEMP-B3-12xA - Temperature Probe

Part Number:OW-TEMP-B3-12xA


 In Stock, 351

Choose Options

1-Wire Connection
  • Accuracy:±0.5°C (-10ºC to +85ºC)
  • Waterproof:Yes
  • Probe Length:3 in (7.6 cm)
  • Cable Length:12 ft (3.65 m)
Volume Discount
  • 25 - 99
  • $35.10
  • 100+
  • $33.26
  • Previously part # RTP (but now automatically configures VDD pin).
  • Submersible, rugged, wide temperature range probe suitable for use in harsh environments.
  • 304 stainless steel probe, from 3 to 12 inches in length (3” standard).
  • Stranded cable, from 1 to 100 feet in length (12’ standard).
  • Standard with Maxim DS18B20 sensor.
  • Uses 1-Wire communication protocol.
  • Compatible with all EDS and Maxim 1-Wire bus masters.
  • Chemical resistant and waterproof steel probe and cable.
  • Automatically configures the VDD pin to the correct state.
  • 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.

The OW-TEMP-Bx-xxA temperature probe is designed for wide temperature range applications requiring sensor submersion and/or excellent chemical resistant properties. The probe is resistant to acids, alkalis, ketones, esters, aliphatics, aromatics, and outdoor exposure. It is constructed of 304 Stainless Steel making it both durable and water resistant. The cable used is constructed of TPE based materials for both the outer jacket and inner conductor insulation. It is particularly suited for harsh environments, and offers excellent resistance to high and low temperatures, oil, gasoline, and sunlight exposure. All of this results in a robust sensor which can be submerged beyond the top of the steel probe.

The sensor is equipped with a DS18B20 1-Wire temperature sensor embedded into the probe. In manufacturing the temperature probe a special process is used which ensures the internal sensor is thermally coupled to the steel tube wall; this helps ensure rapid thermal response to changing conditions.

The probe is designed to make the installation process as fast and error free as possible. It is the first 1-Wire probe to automatically identify whether external power is being supplied to the VDD pin and then configure the sensor appropriately. Furthermore, it is terminated with a RJ12 plug which commonly makes installation much easier.

The probe is directly compatible with all Embedded Data Systems and Maxim 1-Wire bus masters, as well as the freely available TMEX drivers. For complete documentation on the embedded DS18B20 sensor, please refer to the manufacturer’s DS18B20 spec sheet.

Parameter Symbol Min Typ Max Units
Temperature Range TR -55 - 125 ºC
Accuracy (-10ºC to +85ºC) ACM -0.5 - +0.5 ºC
Accuracy (-55ºC to +125ºC) ACT -2 - +2 ºC
Resolution (DS18B20) - Programmable - 0.0625 - 0.0625 ºC
Supply Voltage VDD 0 5.0 5.5 Volts
Active Current Idd 1 1.5 MilliAmps
Standby Current Iq 100 150 NanoAmps
Dimensions (body diameter) BDia .165 .170 .175 In.
Dimensions (tip diameter) TDia .217 .219 .221 In.

The RJ12 pin outs are as follows:
  • Pin 3: 1-Wire Signal, Blue
  • Pin 4: Common (GND), White
  • Pin 6: Ext. Power (VDD), Orange, (connection not required)

Our standard variants of the OW-TEMP-Bx-xxA sensor include:

  • OW-TEMP-B3-12A which has bare leads, a 3 inch long steel probe, and 12 foot long cable.
  • OW-TEMP-B3-12RA which has a RJ12 plug, a 3 inch long steel probe, and 12 foot long cable.

With minimum orders we can manufacture the temperature probe to a variety of specifications, including length of the steel probe, length of cable, with / without RJ12 plugs, etc. Please contact us for a custom quote.

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