The Center 370 handheld thermometer complete with single RTD sensor is waterproof - rated IP67. The RTD sensor is a 4 wire PT100 which offer affordable accuracy.

Features include:
Resolution: 0.1 °C/0.1 °F
Accuracy: ±0.1% of reading plus 0.4 °C
Measurement Range: -100 °C to 300 °C or -148 °F to 572 °F

IP67 water proof Housing
PT100 temperature sensor for improved accuracy
PT100 3850/3926/3916 RTD standard
Max/Min/Avg Function.
LCD back light.
°C, °F scale selectable
3 sectors battery life indicator.