WH-200 4G GSM SMS Remote Controller Switch Relay for Swing Sliding Gate Opener

Overview:THE WH-300 4G GSM controller is designed to remotely control a relay output on an authorised incoming call. The unit will check the database of allowed users, reject the call and only sw..

Features4G GSM network communication, no distance limitation, can be used anywhere.Works with a Nano SIM card, users could dial the SIM card number to open the door.No phone charges, no distance limit..

Features:GSM network communication, no distance limitation, can be used anywhere.Works with a Nano SIM card, users could dial the SIM card number to open the door.No phone charges, no distance limits,..

Features:GSM network communication, no distance limitation, can be used anywhere.Works with a Nano SIM card, users could dial the SIM card number to open the door.No phone charges, no distance limits,..

Authorized 200users open gate at the specified time!GSM Gate, Barrier, Shutter, Garage Door and Door openerOpen gate or garage door with a FREE call from your mobile phone!Remote switching machin..

The GSM SMS Environment Alarm WH-170 is special for remotely monitoring site temperature, humidity, power status through wireless GSM Network. When the temperature, humidity, power status exceed high ..

Brief introductionThe GSM SMS Environment Alarm WH-180 is special for remotely monitoring site temperature, power status through wireless GSM Network. When the temperature, power status exceed hi..

The GSM Gate Opener/Relay Switch RTU5034 is an powerful GSM Relay, it is a very simple device which can be used for authorized door access, controlling gates, switching of remote equipment, ..

Description:This GSM gate opener features remote on/off switch by authorized phone free calls, which can be operated from anywhere, no distance limit, very convenient.Features :*850/900/1800..