S500 series--Slim profile, Durable design, Maximum alarm integrity, High-performance electronics Customize colors.
Ideal for high-traffic areas and exit of retail world! The S500 series is designed for maximum durability. The leading Digital Signal Processing technology provides superior detection.
If you are interested it, pls feel free to contact me:
Contact Person: Miss Ada
Skype: missada_happy
Mobilephone: 0086-13524589892