Atc semitec ip67 10k precision ntc thermistor probe with lead atc semitec 103at 11 the atc semitec ip67 10k precision ntc thermistor probe with lead is a high precision thermal sensing device that features an extremely small b value tolerance and resistance when the device is used as a temperature gauge there is no requirement for adjustment between control circuit ensuring good temperature precision atc semitec 103at 11 ip67 10k precision ntc thermistor probe with 600mm lead