When the contents of freezer and refrigeration units must be monitored to ensure their safety and preservation, you need a thermometer with accurate and reliable temperature monitoring. With HI147's unique Cal-Check® you engage the switch and the unit performs an internal calibration check. In only a few seconds, you see the results on the large liquid crystal display. Return the switch to the READ position and the HI147 returns to its normal measuring status.

Features:

• Easily monitors inside temperature of refrigerators and freezers
• Strong magnetic backing for simple outside attachment
• Exclusive Hanna Cal-check accuracy feature

Specifications:

• Range: -58.0 to 428 °F
• Resolution: 0.1° (-58.0 to 199.9 °F), 1° (200 to 428 °F)
• Accuracy (@77°F): ±0.5 °F (-4 to 194 °F), ±0.5% (all other ranges)