APX840  FEATURES 
* Control/Alarm/Monitor via GSM(850/900/1800/1900MHZ) mobile phone, with no distance limitation. 
* 8 switch inputs. 
* 4 relay outputs, 
* Can set two warning mobile telephone no. 
* Simple SMS command. 
* Dual band GSM module is included. 
* Application : Intelligent , innovation, wide range, no limitation. 
* Control/Monitor/Alarm via GSM mobile phone, no distance limitation.
  User can Control/Monitor/Alarm their device from over the world.
*Mobile telephone can call the status of Switch input and Relay output at any time.
* Can default setting two telephone no.,alarm SMS can be send to two users.
* 4 Relay and one alarm relay outputs. 
* 8 Switch inputs, normal open, close alarm. 
* Build in GSM mobile modem ( dual band ). 
* Setting Input switch alarm ( close alarm ) to enable or disable via SMS 
* After the SMS command send by mobile phone, the  confirm message will be send back to the mobile phone , safety and no loss. 

* Relay output On/Off setting via SMS. 
* Dot matrix LCD display, show Analog input value, Switch input and Relay output 
 status
* Intelligent application , innovation, wide range, no limitation. 
* All setting value will be saved into EPROM IC, no loss. 
APPLICATION 
* Industrial remote monitor/controller/alarm system alarm system.
* Agriculture usage. 
* Animal husbandry. 
* Industrial security system.
* Water supply systems. 
* Home security system. 
* Traffic systems. 
* Building supervision. * Railway systems/Vehicles. 
* Industrial systems. * Energy systems. 
* Pumping stations. * Water clarification. 
* Power station. * Heating power plants.