ECOWITT WH0281A Wireless Indoor Outdoor Thermometer Digital Temperature Monitor with 3 Remote Sensors

ECOWITT Indoor Outdoor Thermometer is designed to help you monitor the real time temperature condition of your room. Or get temperature data on different locations with remote sensors. Features: Temperature Gauge: measures indoor outdoor temperature for you to monitor the weather changing. 300FT/100M Transmission Range: with strong signal penetration, can receive and display temperature from up to 3 outdoor remote sensors (all included). Alarm Clock: 12/24 hour digital time display with alarm clock function; Max/min records for indoor/outdoor temperature since last reset. Energy Saving and Eco-friendly: Powered by only 4 AA battery(one for receiver and one for each outdoor sensor) Specifications: Transmission range: 300ft /100m(no interference, barriers or walls) Frequency: 433 MHz Update Rate: 60 seconds Indoor temperature range: -14°F ~140°F (-9.9°C to 60°C) Outdoor temperature range: -40°F ~140°F ( -40 °C to 60°C) Accuracy: ±2°F (±1°C) Power consumption: Base station: 1x AA battery(Not included) Remote sensor: 1 x AA battery for each(Not included) Package List: 1x base station + 3x remote sensor + 1x user manual