Features: °/° switchable,large display for indoor or outdoor temperature sensor. Max or min temperature memory,high or low temperature alarm setting Foldaway stand,magnetic attachment and double-sided sticker,easy to fix. It' s really mini and light weight,3 meters long cable. Suitable for measuring refrigerator,freezer,aquarium medicine box and outdoor temperature. Description: This TM803 thermometer is mainly used to test the temperature for refrigerator,freezer,aquarium,medicine box and outdoor,etc. Specification: Measurement Range:-10 to 50 °/14 to 122° (room temperature) -50 to 70 °/-58 to 158° (outer sensor temperature) Accuracy:±1°/ ±1.8° Display Resolution:0.1° Battery:1.5 V AAA battery (not included) Sampling rate:10 seconds Sensor cord length:3 meters Product size:70 x 50 x 14 mm Product weight:48g Package Information: Package Size:16 x 14.5 x 2.3cm / 6.3 x 5.7 x 0.9in Package Weight:71g / 2.5oz Package List: 1 x Thermometer 1 x Double-sided sticker 1 x User manual card