Hanna Instruments

The HI765158F is a calibration check key for thermistor thermometers that use the HI765 series of probes. Designed to simulate 158℉ (±0.8℉), this key offers a fast and simple way of checking the accuracy of your instrument.

• 158℉ Key Rated Value
• Simple, Quick Verification
• For Thermistors with HI765 Probes