Tuya Smart 5-in-1 Wall-Mounted Noise Decibel Meter With Temperature, Humidity and Time Display 1. This is a 5-in-1 wall-mounted environmental monitor, integrating noise decibel measurement, temperature, humidity, and time display functions. The device features a large LED screen and supports smart linkage via the Tuya app for real-time monitoring. 2. The device simultaneously displays five key parameters on the LED screen: noise level (units: dBA), temperature, humidity, AQI, and current time. It visualizes noise intensity using color-coded emoticons (e.g., smiley face, neutral face, warning face) and bar graphs for intuitive data understanding. 3. Smart Linkage Function: Through Tuya Smart WiFi integration, users can connect the monitor to the Tuya mobile app for remote access. This allows viewing real-time data anytime. The upgraded version additionally supports data storagedownload and customizable threshold alerts (e.g., for noise or temperature limits). 4. Space-saving design with a wall-mounted, slim profile (269 x 89 x 35 mm), featuring a clear LED screen for easy reading. The device runs on a built-in 2000mAh lithium battery. The basic model uses a DC interface, while the upgraded version features a Type-C interface for enhanced convenience. 5. Three versions are available: --Celsius Basic Version: Displays temperature in Celsius only. --Fahrenheit Basic Version: Displays temperature in Fahrenheit only. --Upgraded Version: Adds data storagedownload, threshold alert functions, and temperature unit switching (supports Celsius and Fahrenheit conversion). Parameters: 1. Material: ABS plastic 2. Weight: 320 g (11.3 oz) 3. Dimensions: 269 x 89 x 35 mm (10.6 x 3.5 x 1.4 in) 4. Measurement Range: Noise: 30-130 dBA; Temperature: -10 to 50 Celsius (14 to 122 degrees Fahrenheit); Humidity: 20%-85% RH 5. Sampling Time: 1.5 seconds 6. Storage Temperature: -10 to 60 Celsius 7. Atmospheric Pressure: 12.5-15.4 PSI 8. Battery: 2000mAh lithium battery