Product characteristics: Measure the temperature and domestic and outdoor humidity, conversion Celsius and Fahrenheit The highest and lowest temperature and humidity memory function You can view historical temperature and humidity data Connect up to 3 outdoor units (conventional assembly with an outdoor unit) Two high magnetic magnets on The rear hull of the main unit can be attached to metal objects there is a support on the back of the host, which can stand in horizontal position High sensitivity touch button control, easy to use COMFORT INDICATOR, Trend Temperature and Humidity Trend Indicator LCD Screen HTN Large High Definition Screen Without angle With the backlight, it will automatically turn off the backlight after 10 seconds without operation The outdoor unit can be suspended with suspension holes, or it can be placed on a horizontal surface Outdoor unit XP4 Waterproof Product settings: Interior temperature range: -4 F-158 F (-20 C-70 C) Outdoor temperature range: -40 F-158 F (-40 C-70 C) Moisture range: 20% -95% Comfort display: Dry, comfortable, wet Temperature display unit: C \/ F optional (the default value is C) Temperature resolution: 0.1 C \/ F Moisture resolution: 1% Refresh rate: 10 seconds. Error: Temperature plus or minus 1 , Moisture plus or minus 5% Wireless reception range: 60 meters \/ 197 feet wireless frequency RF: 433 MHz Power supply: AAA battery (battery not included in delivery) Packaging data: Single product size: Host: 114 * 24 * 96mm Transmitter: 100 * 35 * 20mm Unique net weight of the product: host: 142G Transmitter: 40g DETAILS OF THE ONE FOR ONE PACKAGE: Unique set of product packaging size: 155 * 33 * 135 mm Weight of the package of a single game: 232g Package list: host * 1, transmitter * 1, beaded cotton bag * 2, English manual * 1, anti-slip screw set * 1, conventional cow skin box * 1