Specifications: 1. 6 touch buttons: simple and convenient operation, touch design. 2. With backlight: DC power supply: 4-level dimming (high light-medium light-low light-off); battery power supply: light on for 10 seconds. 3. Time display: 12HR/24HR hour . 4. snooze function (snooze time 5~60 minutes)5. calendar, date display ( can be switched): M (month)/D (day) & D (day)/M (month) 6. Day of the week display: languages available for the week of the week (, English, , , ) 7. Temperature display unit: / (can be switched at will) 8. Barometric pressure indication (monitored in the 12 hours): /mb and inHg two unit , range 850hPa/mb(25.1 inHg) - 1100hPa/mb(32.48 inHg)9. 6-level weather forecast function: sunny, cloudy, cloudy, rain, heavy rain, snow. 10. Moon phase indication (8 moon phases) 11. Temperature and humidity memory function: memory indoor/outdoor maximum/low temperature display, indoor/outdoor maximum/low humidity display. 12. Temperature detection range. Indoor (INDOOR): -20- 70(-4-158); Outdoor (OUTDOOR): -40- 70 (-40-158) resolution 0.1/13. Indoor and outdoor humidity detection range: 20%RH-95%RH. 14. Comfort, temperature change trend, maximum and minimum memory function of indoor and outdoor temperature and humidity. 15. Indoor temperature (high and low temperature) upper and lower limit alarm function. 16. Outdoor temperature (high and low temperature) upper and lower limit alarm function17. Outdoor transmitter: IP54 and waterproof, can be hung, can stand, easy to install. Using stable 433.92MHz RF sensing frequency, wireless transmission distance can reach 60 /100 feet. 18. An indoor receiver can be connected to 3 outdoor transmitters at the same time (the screen can be manually/automatically switched to di). 19. Indoor and outdoor low power indicator (low power detection function, level 3 power display 100%, 30%, 0%)1. Power supply mode:Receiver: 3x"AAA" AAA battery or DC 5V power supplyTransmitter: 2x "AA" AA batteries2. Product size:: 180 x 25 x 140 mm;Transmitter: 50 x 25 x 110 mm;Screen size: 130 x 80mm (6 inches);Material: ABSColor: as shownPackage Contents:1 x Receiver1 x Transmitter1 x USB cableOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.