Eisco Labs Electric Bell with Banana Plug terminals 4-6V AC/DC Base Size_11 x 11" supplying an inert electrode that

supplying an inert electrode that conducts current without contributing its own ions to the cell reaction

glass working

the chrome-plated metal frame giving the reading magnifier durability across repeated student handling

conventional stand-ins for oxygen centers in water and alcohol-like structures

Eisco Labs Electric Bell with Banana Plug terminals 4-6V AC/DC Base Size_11 x 11" supplying an inert electrode thatEisco Labs Electric Bell with Banana Plug terminals which utilizes 4 6V AC DC power. Metal bell with ringer, with Plastic shroud Diameter of bell is approx. 2. 75" Full unit measures 5. 25" x 2. 75" Power supply NOT included Eisco Labs Electric Bell with Banana Plug terminals which utilizes 4 6V AC DC power. Power supply is NOT included. Diameter of bell is approx. 2. 75" Full unit measures 5. 25" x 2. 75"