https://www.iset-uk.co.uk/product/ics-monitored-micro-mortice-magnet/
ICS Monitored Micro Mortice Magnet (U10003F/S) - ISET UK
Operating voltage 12~24Vdc, Stainless Steel housing, Holding force up to 300Lbs (136Kg), Weather resistant: IP67, Sealed electronics
icsmonitoredmicromorticemagnet