this alarm system support WIFI,GSM,GPRS three network and 433mhz working frequency. and it can notice via APP notification,message,or dial.
It also support CID or SIA.
More details:
Heyi Electronics has been focused on various alarm products for many years and are known as a famous brand. Welcome to wholesale the promotional anti gsm jammer smart 433 mhz monitoring alarm systems alarm system for business with our manufacturers and suppliers. And the customized service is also offered in our factory.
