Mercury Photoelectric Smoke Detector with 10 Year Sealed Battery - Pack of 2 MP19 The binoculars have an Aluminium

The binoculars have an Aluminium Chassis for strength and rigidity and a Rubber Armour outer covering for protection

Mains or battery operation and a trolley mechanism for portability give the DELTA-200 freedom and flexibility to provide sound coverage almost anywhere

16mm Lens (35mm equivalent)

For longer distances

and rough handling

Mercury Photoelectric Smoke Detector with 10 Year Sealed Battery - Pack of 2 MP19 The binoculars have an AluminiumThe Mercury Photoelectric Smoke Detector with 10 Year Sealed Battery is an easy to use photoelectric smoke alarm that needs no battery maintenance during its 10 year lifespan. Simply engage the internal battery by releasing the pin on the base of the unit, fix to your desired surface and test on a regular basis. Once the detector nears the end of its 10 year life, a low battery indication alerts you to replace the unit. This model also has a hush