Sorry, fant svaret om sensorene: This is as longer version of the RJ11 OneWire temperature sensor, with a 2.5m cable instead of 1.5m. These OneWire temperature sensors are custom made for us and much higher quality than the ones you find on Amazon or eBay, the ones with the shrink wrap around the probe. We know, they cost a bit more than the cheap 5-packs, but they are worth it: Unilke the cheap sensors, our sensors have: Silicone cables that can withstand boiling temperatures The temperature sensor all the way down into the tip of the probe The probe completely filled with epoxy, for guaranteed waterproofness An RJ11 plug (fits in RJ12 socket) Extra long cable Specs: 2.5m cable 0.0625 ºC resolution Range of -55°C to +125°C Factory accuracy of ±0.5°C over the range of -10°C to +85°C With calibration via the BrewPi software, accurate to 0.0625 °C Probe diameter: 6 mm / 0.24 inch Probe length: 50 mm / 1.97 inch These sensors are digital OneWire sensors. They are not compatible with PID controllers like the STC-1000, Johnson or Ranco. This is not a an RTD or thermocouple.