Demonstration Meter with Changeable Interscapes 69-72-7) is of extra-pure grade

69-72-7) is of extra-pure grade with a minimum purity of 99

Ideal for any lab experiments such as determination of nitrogen content in soils and Malt filtration according to EBC standards

(25 x Cl Green Ball 1 Hole)

it allows for precise adjustment of the distance between the plates

Demonstration Meter with Changeable Interscapes 69-72-7) is of extra-pure gradeA versatile instrument and demonstration meter that can be converted to an A. C., or D. C. voltmeter or ammeter with selection of various ranges for each mode. With a high quality moving coil, spring controlled movement with full scale deflection of 5 mA or 100 mV D. C. The long pointer has a spade end and is clearly visible from a distance. Fitted in case with glass front and back. The instrument can be used with different dials to give different