GSM-Modem "Q-Start" Remote Control for smartphone use Airterm Air Heater, Planar 2D, 4D & 44D & Binar 5S, 12V und 24V Technical parameters: Modem QSTART is device with the ability to use Autoterm Control application on smartphone (available at Google Play and AppStore) to control any AUTOTERM air heater and liquid heaters. To connect QSTART modem to liquid heater 14TCmini, necessary additionally order Modem harness-adapter assy.3814 Application "Autoterm Control" together with modem QSTART will let you to operate and oversee your Autoterm heater via 2G / 3G network. Main advantages of "Autoterm Control" application: Remote Start/Stop of heater Start heater with pre-set working duration Current status check Temperature check Operation settings * Modem QSTART uses micro sim card slot * Modem QSTART works on 900 / 1800 / 2100 Mhz network bands * Works using HSPA & WCDMA network technology. Note: please use the app "Autoterm control"