Demonstration Meter with Changeable Interscapes Experiment kit Reticle Adjustable Eyepiece

Reticle Adjustable Eyepiece

Water Cycle Chart with roller

This real dissected specimen of Earthworm has been embedded in plastic for observation and study

Bell (Vacuum) Jar with stand base and with Electric Bell

75-inch Diameter

Demonstration Meter with Changeable Interscapes Experiment kit Reticle Adjustable EyepieceA 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