GSM SIM card door alarm, send SMS or call when the door open/close,Quad-band,(RF-V11)

1) Simple operation,without install

2) The door was opened/closed, will send SMS and call you.

3) Active listening

4) Voice trigger call back

5) Remote battery check

7) Low battery remind

8) All funtion can be remote star /stop

9) Quad band, Network: GSM 850/900/1800/1900MHZ

10) Size: host 45*34*14mm Color Box 138*118*46

11) Weight: host 40g Packing:166g

Why choose us?

1.spend your time and money more valuable and back in business is my business

2. I am a worldwide wholesaler with my factory located in Shenzhen , China.

    High quality, reasonable price and excellent customer service will give you best shopping experience.

3. I am used to and good at solve your problems by commucation rather than bad feedback or cases.

    Any question or suggestion, feel free to contact me.

Factory Products / OEM Service Supported :

---- Professional from focus.

 Professional production of real time tracker and motorcycle alarm, electric bicycle alarm, vehicle alarm,personal sos alarm,ect...    

We provide GSM wireless communication application solutions with high quality and low cost . Includes

GSM/GPRS data transmission module,, soft/hardware high integration and external different sensors, in order to meet different customer needs.

GSM software ODM/OEM 

GSM vehicles alarm ODM/OEM 

GSM/GPRS/GPS module or product ODM/OEM

Latest Design :

4G LTE GPS tracking watch RF-V46 

3G WCDMA GPS trackind pendant   RF-V42

2G GSM HR&BP Health care GPS tracking Watch RF-V36