HEYI HY-31A on langaton näppäimistö HEYI-varashalyttimiin. Langattoman näppäimistö voidaan sijoittaa vartioitavan tilanulkopuolelle ja siitä saadaan kytkettyä vartiointitila päälle tai pois.

Ominaisuudet:
• The wireless keypad adopts disposal core of octet single chips and micro-power consumption design
• It can be collocated with HEYI alarm systems
• Wireless Keypad implements Arm, Disarm and Emergency Alarm with password and supports multiple users, which solvethe inconvenience caused by carrying controller
• With the elegant appearance, the keypad also owns the following functions: clew of power status, backlight, and tamper, anti-mobile and so on