Certain applications targeting harsh environments demand a small sensor with a fast thermal response. That's where the PM series of miniature temperature probes steps in. Made of 300 series stainless steel, the housing measures 0.0188 by 0.500 in. The tight tolerance of the housing's outside diameter of ±0.005 in. allows for designs with small clearances, further improving thermal response time. The series comes with a choice of negative-temperature-coefficient thermistor or resistance-temperature-detector elements with a variety of resistance curves and accuracies. Other options include custom wire or cable and thermally conductive epoxy to maximize response time. The probe costs $5 each in volume lots. Lead time is two weeks or less.