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Self-Adhering Surface Temperature Sensors

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Thermometrics Self-Adhering Surface Temperature Sensors are designed for industrial HVACR applications, typically for placement on the external wall of a water tank or boiler reservoirs. They are also suitable for reservoir tanks working in conjunction with solar panel water heating systems. This range of adhesive pad sensors detect over-temperature resulting from a malfunction or a dry-fire.

Pressure sensitive adhesive tapes loaded with ceramic powders provide high thermal conductivity and thus excellent heat transfer from the heat source to a NTC thermistor while maintaining appropriate levels of dielectric strength. An adhesive-lined foam backing tape provides air and moisture resistance with optional WRC (5470) water safety and DIN 4102 part 1 (B3) fire safety approvals.

45mm x 45 mm, square, 650 mm length insulated wire, Molex 5559 connector type

  • Excellent heat transfer
  • Long-term stability
  • Multiple adhesive tape sizes and shapes available
  • Various lengths
  • Temperature ranges from -30 to +70°C
  • PVC single insulated lead wire, 3x1.5mm cross-sectional profile
  • Voltage withstand: 750 Vac between the terminals of the connector and the contact tape, for a broadly sinusoidal wave form at 50 Hz, where the max permissible current is 1 mA

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Customer Reviews

2 out of 5

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Doesn't seem to match the spec sheet.

Around 70F, I get roughly the resistance the spec sheet suggests. Anywhere much above or below that, and resistance changes much faster than the spec sheet suggests. So, if my handy IR thermometer (and experience touching cool things) says the thermistor's at about 60F, I get a resistance value that suggests 45F. If I have something warmed up to about skin temperature (80F), I get resistance that suggests at least 90F.

I have a couple of them and they all behave very similarly, so it's possible that the spec sheet provided doesn't match the specific thermistors now being shipped?

That said, they do seem stable thus far within their range, so if you have a way to calibrate them, they're probably fine.