ZX3551D Digital Display Weather Station Clock with 3 Wireless Sensors, Temperature / Humidity Meter Clock Multifunction Alarm Clock (No Battery)

• With 3 transmitters, this product can display 3 sets of temperature and humidity data simultaneously on the same screen
• Time is optional 12/24 hour format, perpetual calendar to 2099
• Available in 7 Languages: English, German, Italian, French, Spanish, Dutch, and Danish
• Two sets of alarm clocks. Snooze function. Low battery alert
• Room comfort display. Indoor mold risk alert
• Simultaneous display of temperature and humidity by 3 sets of outdoor sensors.
• Temperature and humidity maximum / minimum value recording
• Outdoor Wireless Sensor: 3 channels connectable; 433.92MHz RF transmission frequency; up to 60m transmission range in open areas

Specifications:

• Indoor and outdoor humidity measurement range: 20%RH ~ 95%RH
• Indoor temperature measurement range: -9.9°C (14.2°F) ~ 50°C (122°F)
• Outdoor temperature measurement range: -40°C(-40°F) to 70°C(158°F)
• Temperature units: ℃ or ℉
• Power supply: battery powerd, no power supply required, easy to use
• Weather station batteries: 2 x LR06 AA (Not Included)
• Outdoor sensor batteries: 2 x LR06 AA (Not Included)