12-24 VDC Transmitter: M880-WAVE2 L12 3737 - Nothlat STOP (PLe) - 12 x double pushbutton - 1 x switch S2 next to emergency stop - 1 x START/HUPE button (P0) at the rear incl. charger 12-24 VDC with 2 batteries Receiver: M880-HAC 24 relays operating voltage: 12-24 VDC dimensions: 145x65x225mm Connection: cable gland