Hanna* Waterproof Thermistor Thermometer

Microprocessor-based. Measures temperature from -50.0° to 150.0°C (-58.0° to 302°F). A precalibrated thermistor (small electronic sensor which has the ability to measure temperature rapidly) probe ensures accurate measurements. A full range of probes are available. Operates for approximately 200 hours of continuous use on four 1.5V AA batteries (included).