Digital Aquarium Thermometer for Terrarium Indoor and Outdoor Temperature 28TC Description:Easy to read LCD screenFunction clock displayCelsius and fahrenheit can be transformedInternal sensor can measure air temperature. The simple operation of the outdoor sensor immerses you in your aquarium or refrigerator or anywhere you want to monitor the temperature. You can use the FSW button to switch from "indoor temperature" to "outdoor temperature" and "clock", if it needs to adjust the time, pls use the "HR" and "MIN" button. Specifications:Temperature measurement range: -50°c - +70°c (-58°f - +158°f)Accuracy: ± 1°cResolution: ge;-20°c, 0.1°c;le;-20°c, 1°c/ge;-4°f, 0.1°f; le;-4°f, 1°fPower Supply: 1 x AAA Battery (Not Included)Size: 118x3 0mm/4.65x1.18"Cable Length: 1m/3.28ftQuantity: 1Pc Note:Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before biddingDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Aquarium Thermometer1 x User Manual