Recently improved, the Drake Plus Bite Alarm feature Nite-Glo Led and magnet bite detectors. Compact and attractive shape with mat black soft touch finish. Internal electronic components have a special coating which protect from rain and humidity, and make possible to set in four different level volume, tone and sensibility. The led have 30 seconds memory and on the bottom there is an output jack where illuminated bite indicators can be connected. Available in four different colours: blue, green, yellow and red, it works with MN 21/23 12V battery.