Powered by solar energy,envrionment-friendly and energy-saving.
GPRS/CDMA wirless communication,fast data transmission.
Adopts super bright red LED,low energy cost.
The brightness of sceen could adjust automaticlly or manually according to envrionment.
It could display current time,temprature and humidity.
Long-range control,it could be controlled by computer and cell phone.
More than 100 pieces information repeat and various sceen switching mode.
Continuously work more than 30 hours in wet weather.