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How do I change the temperature units on my Paryvara TH 1420 infrared thermometer

1Answers
ElisaMarie
12/17/2025, 12:19:52 PM

Switching between Fahrenheit and Celsius on your Paryvara TH 1420 infrared digital thermometer is easy. Here's how: First, ensure the thermometer is off. If it's on, allow it to power down automatically after about 10 seconds of inactivity. Next, press and hold the "Ear" button for approximately 8 to 12 seconds. The display will initially show "_ _ _ M". Continue holding until you see "_ _ _ ºF". As soon as "_ _ _ ºF" appears, release the "Ear" button. Within 5 seconds, press the "Ear" button again. The display should then change to "_ _ _ ºC", confirming the unit switch to Celsius. Finally, allow the thermometer to shut down automatically. These instructions are based on the Paryvara TH 1420 instruction manual.

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