Main feature:

Remote monitor the environment (PM2.5, temperature, humidity and lighting)
Mobile App Control

More specification:
Power Supply: DC 5V
Max.load Current:  500mA
Monitoring Particles : above or equal to PM0.8
Wireless type: 2.4G 802.15.4
Temperature monitoring range: -40 ℃ ~120 ℃
Moisture monitoring range:  0% ~ 100%  
Lighting monitoring range: 0lx ~ 1000lx

More picture of smart Environment monitor: