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ATC Semitec BTS4 Fast Response Temperature Sensors

Push-fit/clip-in temperature sensors in brass with integral o-ring and very fast-response tip.

Perfect for composite heat exchangers with a time constant of less than 3s.



  • Gas boilers
  • Heating and air conditioning systems
  • District heating


  • Push-fit design for plastic heat exchangers
  • Very fast response time (Tc<1s)
  • Accuracy ±1°C or better
  • Operating range up to -40 °C / 140°C


BTS4 Fast Response Temperature Sensor

Technical Specifications

NTC Thermistor Series AT-2, ATC3, ET, NT, ATCS, SP
Temperature Range -40°C/+140°C
Sensor Accuracy R25±3% as standard, ±1% available
Sensor Material Nickel-plated brass, brass, stainless steel
Lead Wires Integral lead-wires as an option
Connectors Lumberg 2.5 MSF, Tyco Modu, etc