Abstract: A thermistor probe comprises a pair of springy pins (P) held in a body (1) and resiliently holding a negative temperature coefficient (NTC) thermistor chip (TH) between their tips. A second body (31) of glass-loaded plastics is injection moulded over the pins and chip and bonds integrally with body (1) to enhance the contact pressure and encapsulate the probe.The probe is suitable for vehicle engine air charge temperature measurement.