... , wireless, blue backlight, temperature, 2.RF.calendar,stimulant weather 3.patent 4.CE & RoHS 5.factory *** ... °C, outdoor temperature:-10-60°C, humidity:20%-99%6.RF 433MHZ outdoor temperature,up to 3 outdoor transmitters7.sound controlled ... *3(excl)+sensor: AAA*2(excl)Certificate: Square blue backlight RF weather station clock meet CE and Rohs best for home ...