Fridge Thermometer -5-50℃ Internal -50-70℃ External Digital Temperature Meter

External Temperature: -50-70℃, ±1℃; -58-158℉, ±1.8℉. Internal Temperature: -5-50℃, ±1℃; 23-122℉, ±1.8℉. Purpose: Temperature testing. Temperature Upper Lower Limit Setting Alarm: Yes.

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