The The MikroElektronika's Hall Switch 2 Click is a compact add on board that represents a magnetic field activated dual relay Click board. This board features the MHA100KN, a high performance, low power Hall Effect sensor from MEMSIC. This Hall switch is a fully integrated CMOS IC that outputs a high low signal following magnetic field changing. It works with a magnet and detects the magnet's close or away position. Two high quality compact relays allow switching of high voltages and can cut or establish a connection on the main side of the circuit. This Click board is suitable for various applications activated by the magnetic field, such as contactless switches, lids or tray position detecting switches, or other similar applications that require contactless switching of the relay contacts.

Low power consumption
Reliable contactless switching by the magnetic field
Separate sensors for both south and north pole magnetic fields
High quality compact relays