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931196-3 Traceable Digital Thermometer: Critical Environment Digital Thermometer, (1) Bottle | Imperial Supplies
![Help. So this is the second digital thermometer I've bought that says my tank is at 90F degrees. My top fin one has always said my temp is around 76-78F. Why is Help. So this is the second digital thermometer I've bought that says my tank is at 90F degrees. My top fin one has always said my temp is around 76-78F. Why is](https://preview.redd.it/kz8aqwkyion91.jpg?width=640&crop=smart&auto=webp&s=3536df6011977cc8d9a46c5013dd9b76081cb262)
Help. So this is the second digital thermometer I've bought that says my tank is at 90F degrees. My top fin one has always said my temp is around 76-78F. Why is
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Digi-Sense Traceable Sentry Triple-Display Thermometer with Calibration; -58 to 158F, Wire Probe - 94460-76
![Cardinal Health CH-4548 - Triple Display - Large Digit Alarm Digital Thermometer, Incubator - Glycol/Water 30ml Bottle, 1/ea - CIA Medical Cardinal Health CH-4548 - Triple Display - Large Digit Alarm Digital Thermometer, Incubator - Glycol/Water 30ml Bottle, 1/ea - CIA Medical](https://images.ciamedical.com/image/data/manual/ivhML4hbVharq2Uq-320x320.jpg)