1. Waterproof design, specification of sensitivity is 2psi=under0.5 kg/cm2
2. These device can avoid personnel injuries and roller shutter break down when the
     low  limit switch fails.
3. Battery insufficient alarm function.
4. Patent certification.
 

Safety strip
 - Waterproof design
 - Anti-Ultra Violet
 - Clip any length for suiting door
 - anti-press specification : 2psi, under 0.5 kg/cm2(attested stardart 0.41kg/cm2)
 
Safety pneumatic receiver
 - Voltage:DC6V
 - Stanby current:9μ + - 5%