Syphon Barometer with Celsius and Fahrenheit Scales, 41" Long Glass Sets & Apparatus_Distillation Apparatus Wider 70 x 20 x

Wider 70 x 20 x 8mm cross-section on this Alnico bar pair gives a broader pole face than typical bar magnets

Seven-metal 20mm density cube set with element-stamped brass

the workhorse high-impedance unit for low-current voltage-divider and signal-conditioning work

Steel keepers across the 50 x 12 x 8mm Alnico bar pair preserve field strength in storage between lessons

Designed to generate and detect ultrasonic waves above the audible range

Syphon Barometer with Celsius and Fahrenheit Scales, 41" Long Glass Sets & Apparatus_Distillation Apparatus Wider 70 x 20 xSyphon barometer at 41 inches tall with a 3. 5 inch wide scale in both Celsius and Fahrenheit, measuring atmospheric pressure via a fluid column mounted on a single piece frame.