LCD Electronic Digital Temperature Humidity Meter Thermometer Hygrometer Waterproof Indoor Outdoor Clock

1. Measure indoor and outdoor temperature and humidity convert Celsius and Fahrenheit 2. Maximum and minimum temperature and humidity memory function 3. View historical temperature and humidity data 4. Up to 3 outdoor units can be connected (with one transmitter choose one-to-one order with three transmitters choose one-to-three to order) 5. Two high magnetic magnets on the back shell of the main unit which can be adsorbed on metal objects. There is a bracket on the back of the host which can stand in a horizontal position. High sensitivity touch button control easy to operate Time alarm clock snooze function Temperature and humidity trend indication HTN -screen high-definition color LCD display without viewing angle With backlight the backlight will automatically turn off after 30 seconds without operation The outdoor unit can be hung by hanging holes or placed on the desktop The outdoor unit is XP4 waterproof (in order to keep the outdoor unit in good use the outdoor unit should be placed vertically to avoid direct sunlight and direct rain for a long time) Indoor temperature range: -4Fahrenheit - 158Fahrenheit (-20Celsius - 70Celsius) Outdoor temperature range: -40Fahrenheit - 158Fahrenheit (-40Celsius-70Celsius) Humidity range: 20%-95% Temperature display unit: Celsius/Fahrenheit optional (default is Celsius) Temperature Resolution: 0.1Celsius/Fahrenheit Humidity Resolution: 1% Refresh rate: 10 seconds. Error: temperature plus or minus 1 Celsius humidity plus or minus 5% Wireless reception range: 100 meters RF Radio Frequency: 433 MHz Function: time function 1 set of alarm clock snooze function backlight function (backlight duration 30 seconds) Indoor unit: 3 AA batteries (battery not included) Transmitter: 2 AA batteries (battery not included) Colour:black+white Material:plastic Package Contents: 1 x Main 1 x Wireless Transmitter Only the above package content other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.