Hoffman voltmeter apparatus for demonstrating the qualitative and quantitative effect of current on water in educational environments

Borosilicate glass body for resistance to chemicals, thermal expansion, shock, and heat

19" arms with stopcocks for accumulating gases during experiments

Graduated to 50mL in 0.2mL increments

Features :-

Includes carbon electrodes in rubber stoppers (X2), platinum electrodes in rubber stoppers (X2), Hoffman electrolysis apparatus, and PFTE stopcocks (X2)

Borosilicate 3.3 grade glassware

Glassware clearly labeled

2 platinum electrodes included and 2 carbon electrodes included

A ring stand and clamp are not included, but needed for unit to function.