... : pir sensor, smoke sensor, gas sensor, shock sensor, water sensor, temperature sensor and so on; With an area of 2000 square ... distance wireless communication(2.4g, 433/315mhz)7, familiar with RS485/232,DMX512,CANBUS port and have related products on sale8 ... application software OEM ODM service offer , gsm product design ,sms controller, gsm/gprs communication product