GSM Booster is a pin-compatible replacement for Telit GM862-QUAD module while retaining the same form factor of this popular module. GSM Booster contains Telit’s new GL865-QUAD GSM module, MMCX GSM antenna connector, SIM card holder, etc.
It can be used on existing MikroElektronika development boards designed for the GM862.
The Relay4 Board is small-sized board with 4 Relays (each supports currents up to 16A). Also, it contains ULN2804 (high-current Darlington arrays) for relays driving and IDC10 connector for easier connecting with development or prototype board.