1, RF transmitter for home/ car alarm system . 2, OEM design welcome 3, the case only with one screw . 4, CE/ RoHS Description :Item ... : remote control for home/car alarm system (fixed code or rolling code)Material: Zinc ... ,SMC5326-4SMC918 ,SMC918-3SMC918-4, HT680 etc . 2.Self-learning remote control 3. Learining face to face in seconds 4 ...