Until now, Shenzhen Sinda Technology Co., Ltd has more than 15 hardware engineers and more than 28 software engineers,who are dedicated to research, design,and develop series of GSM security alarms.

"Patrol Hawk", an old-brand name home and aboard, is the brand of Shenzhen Sinda Technology Co., Ltd. Years of experience in manufacturing GSM alarm makes it a reliable and well-noted brand. Also,based on its high-class quality, state-of-the -art technology, perfect after-sales service and sales network worldwide,which prevails in international security market and gains its leading position and honorable reputation internationally.