Robus presents this 3 hour emergency microwave sensor 10W circular LED bulkhead. The built in microwave sensor has a maximum detection range of 12m and a maximum mounting height of 3M it also comes with the option to adjust the time delay between 5 seconds and 20 minutes. It is suitable for 24/7 use in a variety of commercial applications such as retail shops public buildings communal areas stairwells and many more. It has a wide operating ambient temperature range between -20C up to 35C.