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Surface Temperature Sensors

ATC Semitec stock a wide range of temperature sensors which are used across a diverse range of industries from from Miniature Medical Temperature Sensors, HVAC pipe- clip sensors to Ring/Lug temperature sensors used within Automotive/Batteries.

Critical features include speed of response and minimal heat-loss is critical to obtain accurate temperature control.

The thermal mass of the surface temperature sensor should be as small as possible, combined with suitable thermal insulation where required.

Our range sensors include:

  NTC ring surface temperature sensors in plastic, metal and plastic/metal fittings to suit your application.

  Thin-film JT NTC thermistor sensors offer very fast-acting response for electronics, air-sensing and medical applications; similar leaf-style high temperature sensors offer control accuracy up to 250°C in office automation products.

   Pipe-clip surface temperature sensors can monitor internal fluid temperatures from the outside of the metal pipes on which they are located. Pipe diameters from 12mm to 28mm can be measured with accuracies as close as ±1K and thermal response times of less than 1 second.

See also our product ranges within Miniature Medical Temperature Sensors, or E-Vehicle Temperature Sensors.


Call us today on 01606 871680 to discuss your application’s thermal sensor requirements.  Using our extensive technical knowledge and innovative supplier base, we will work with you to provide the optimum solution for your product.

For volume applications, bespoke products available.

  • ATC Semitec RIng Surface Temperature Sensor
    ATC Semitec STS2 Ring Terminal Temperature Sensors

    Ring terminal temperature sensors available in plastic, metal or metal/plastic. Neat over-moulded ring design which has been widely adopted within the E-vehicle market. They are neat, combining integral electrical isolation as well as thermal isolation to help minimise heat-loss away from the sensor.

    Features include  – high accuracy, fast response times, interchangeability, robust offering excellent long term reliability.

    Typical applications include for use in  electric vehicles, rechargeable batteries, power components, heat-sinks, and hot water appliances etc.


  • Flexible, thin film, NTC thermistors
    Semitec JT Ultra-Thin Flexible Film NTC Thermistor

    Semitec’s JT series of thermistors are ultra-thin flexible film NTCs that give a very fast response to temperature change. Laminated within 2 polymer layers it is one of thinnest available worldwide at less than 0.5mm thick.

    Whilst increasingly used within medical device applications, it is a versatile thermistor which is used within battery packs, e-vehicles, mobile devices and surface/air  temperature sensors.


  • ATC Semitec STS1 Pipe clip temperature sensor
    Semitec STS1 IP67 Clip-on Pipe Temperature Sensors

    IP67 rated pipe-clip water temperature sensor from Semitec.  Ideal for use with gas-boilers, instant water heaters and anti-legionnaires monitoring systems.

    • Fast and accurate response (Tc ≤1s)
    • Suitable for pipe diameter 12-22mm
    • Operating range -20°C/+120°C
  • ATC Semitec STS3 Thin Flexible Film
    Semitec STS3 Thin Flexible Film Temperature Sensor

    A version of our popular flexible JT film thermistor assembly from Semitec, which is fitted with lead-wires and connector.

    This versatile temperature sensor is ideal for air-sensing, particularly for use in fire alarms and heat detectors, component and battery monitoring, rechargeable batteries and medical sensors.


  • ATC Semitec STS4 Flexible High Temperature Surface Sensor
    Semitec STS4 Flexible Surface Sensor for High Temperatures

    High temperature  flexible thermistor suitable for use in sensing high surface temperatures up-to 250°C.

    Typical applications include use in- laser-printers; photo-copiers; fax machines etc; hot plates and appliances.

    • Fast response design (Tc ≤ 1s)
    • High accuracy ±3%
    • Flexible sensing tip
    • Operating range up to 230°C
    • Excellent long term stability