Indoor Outdoor Hygrometer 433MHz Wireless LCD Backlit Temperature Humidity Monitor With 328ft/100m Remote Transmitter Barometric Pressure Display Features: Real-time monitoring of indoor/outdoor temperature (/), humidity, pressure, and weather with 24-hour high and low temperature and humidity memory function. Equipped with an LCD color screen featuring large font display for clear and easy reading. Backlit display that turns off 10 seconds after touching when powered by batteries, and can stay on when in. One receiver can connect to up to 3 transmitters, with a wireless reception ranges of 328ft/100m (in open areas). Operating at a frequency of 433MHz, the reception channel can be manually switched. power supply options - the receiver can be powered by 3 AAA batteries or a Type-C charging cable, while the transmitter uses 2 AA batteries, with low battery reminder. Batteries not included in the package. Compact and lightweight design with a stand for wall mounting or stable placement on a desktop. Suitable for use in , offices, bedrooms, apartments, etc. The outdoor unit is IPX4 , ensuring durability even in rainy conditions. Product Description: Specifications: Color: White/Black(optional) Material: Plastics Power: Receiver: 3 * AAA Battery(Not Included) or DC5V Transmitter: 2 * AA Battery(Not Included) Indoor Temperature Display Ranges: -10+50 & 14+122 Outdoor Temperature Display Ranges: -40+70 & -40+158 Humidity Display Ranges: 20%95%RH Temperature Display Resolution: 0.1/0.1 Humidity Display Resolution: 1%RH Interval: 10s Receiver Size: 133 * 91 * 25mm/ 5.2 * 3.6 * 1.0in Transmitter Size: 50 * 23 * 109mm/ 2.0 * 0.9 * 4.3in Item Weight: 210g/ 7.4oz Package Size: 188 * 120 * 35mm/ 7.4 * 4.7 * 1.4in Package Weight: 263g/ 9.3oz Packing List: 1 * (Receiver) 1 * Transmitter 1 * Type-C Cable 1 * User's Manual