Indoor Temperature And Humidity Monitor LCD Digital Thermometer Hygrometer Weather Station 1. Temperature range: -20~60 degrees Celsius (-4~140 degrees Fahrenheit), error: +-0.5 degrees Celsius, the highest and lowest temperature within 24 hours; 2. Humidity range: 10~99%RH, error: +-3%RH, maximum humidity and minimum humidity within 24 hours; 3. Temperature and humidity are refreshed every 10 seconds; 4. Comfort: Orange, green and blue color bars display. When the humidity is less than or equal to 29%, the triangle points to DRY; when the humidity is greater than 30% and less than or equal to 70%, the triangle points to COMFORT; when the humidity is greater than or equal to 71%, the triangle points Point to WET; 5. Function buttons: three in total, CelsiusFahrenheit conversion, CLEAR-restart, ONOFF-switch on and off; 6. Power supply method: Use two CR2032 batteries (included) to supply power in parallel, doubling the standby time; 7. Shell material: ABS engineering plastic 8. Product size: 93 x 73 x 19mm 9. Display size: 76 x 51mm 10. Placement method: bracketsuspendedmagnet adsorption 11. Net weight: 72 grams Instructions: 1. Place the battery correctly into the battery compartment and power it on. No settings are required; 2. Display temperature, humidity and comfort level on the same screen, the numbers are clear and clear at a glance; 3. Press the CLEAR key to restart the thermometer and press the CelsiusFahrenheit key to convert from Celsius to Fahrenheit.