HEL-705-U-0-12-00 - 

RTD Sensor, Platinum, -200 °C, +260 °C, 1 kohm, HEL-700 Series

HEL-705-U-0-12-00 - RTD Sensor, Platinum, -200 °C, +260 °C, 1 kohm, HEL-700 Series

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Manufacturer Part No:
Newark Part No.:
Product Range
HEL-700 Series
Technical Datasheet:
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Product Overview

The HEL-705-U-0-12-00 is a thin film Platinum RTDs (Resistance Temperature Detector) is designed to monitor or control critical temperatures in industrial applications. It provides a linear change in resistance versus temperature, combining high linearity, stability, accuracy and wide temperature range in a small. The HEL-705-U-0-12-00 is designed to measure temperatures from -75 to 540°C (-100 to 1000°F) with high accuracy. These fully-assembled elements are ready-to-use in probe assemblies, without the need for fragile splices to extension leads. This products is manufactured using a thin layer of platinum deposited on an alumina substrate and are laser trimmed to a resistance interchangeability of a standard ±0.2% (±0.5°C accuracy). The sensor chip is then glassed, wired and potted or ceramic fired to result in a cylindrical alumina package with either TFE PTFE or fibreglass, insulated lead wires.
  • Wide temperature range
  • Interchangeable
  • Accurate
  • Fast response time
  • Laser trimmed
  • Ceramic case
  • TFE PTFE or fibreglass leadwires
  • Ready-to-use and fully assembled elements
  • 28 gauge, nickel-coated stranded copper, PTFE insulated termination material
  • 50MΩ at 50VDC, 25°C insulation resistance


Sensing & Instrumentation, HVAC, Automation & Process Control, Medical, Defence, Military & Aerospace, Avionics


ESD sensitive device, take proper precaution while handling the device.

Product Information

HEL-700 Series
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I have two older indoor/outdoor digital temperature consoles, one by Taylor and one by Oregon Scientific. They both use wired probes to the outside. The O.S. has bad LCD's and house painters inadvertantly ripped off the probe from the end of the Taylor's wire. I cut off the O.Scientific's probe with a foot of wire and tried soldering it to the Taylor's exposed lead ends, but it doesn't register on the outdoor LCD screen, which just flashes "LLL"; the indoor LCD screen on it works just fine.

I should probably just solder a whole new probe and wire set to the outdoor-side circuit board on the Taylor, but can't figure out what to order off this website; I don't have enough electronics expertise to ferret that out. Obviously there is a fine line regarding resistance and other factors, even though both units operate similarly and use 10-12 ft. two-wire, ~24-28 guage leads.

None of the probes I've seen here, with the exception of this one, looks much like the 1 inch white bullet style these two devices use -see the one off the old O.S. in attached photo-, and the Honeywell one titled above isn't quite right either, and likely too expensive to be an efficient fix for my problem.

Any help is appreciated so I can get the Taylor off my workbench either fixed or as an indoor temp. monitor only.
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3 months, 3 weeks ago
 - Oregon, USA
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