1. Function overview: 1. LCD screen 2. Dimensions 48*28.6*15.2mm (there is a little error in the measurement) 3. LCD screen size: 35.7*16.8 mm (there is a little error in the measurement) 4. Weight: 35 grams (battery included) 5. Humidity display 6. Humidity measurement range 10%~99% 7. Display resolution of humidity 1% 8. Humidity sampling period is 10 seconds (1 minute) 9. Humidity measurement accuracy is 5% 10. Rated voltage DC1.5v (2 x AG13 button cell batteries ) 11. Temperature measurement range -50 to 70 12. Temperature measurement accuracy is 1C (at normal temperature) 2. Battery installation Return to the back of this product; Push the battery compartment cover in the direction indicated by the arrow, insert two LR44 button cell batteries into the battery compartment 3. Installation and operation Integrated installation This LCD digital thermometer and hygrometer has a probe of 1.5 m in length, which can test temperature and humidity in some special places. It has been widely used in aquariums, poultry, reptiles, incubators, greenhouses, etc. Size: about 48mm*28.6mm*15.2mm LCD screen size: about 35.7mm*16.8mm Measurement temperature range: -50C~+70C Installation design integrated. Description: Measurement temperature range: -50C~70C Measure humidity: 10%RH~99%RH Temperature accuracy: +1/-1C Temperature display resolution: 0 .1C Working voltage: 1.5V AG13/LR44 battery Sampling time: 10S Size: about 48mm*28.6mm*15.2mm LCD screen size: about 35.7mm*16, 8 mm Color: black Working voltage: 1.5V signal Power source: 2 x LR44 button cell batteries (included) This LCD digital thermometer and hygrometer has a 1.5m long probe, which can test temperature and humidity in some special places. It has been widely used in aquariums, poultry, reptiles, incubators, greenhouses, etc. Package includes: 1 x GetVeryRich Digital Hygrometer Thermometer