Syphon Barometer with Celsius and Fahrenheit Scales, 41" Long Glass Sets & Apparatus_Distillation Apparatus High-level peroxide test strips in

High-level peroxide test strips in a 50-strip vial calibrated at 0

Designed to measure Planck's constant through the photoelectric effect

combining protective gripping with angular adjustment on one piece

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

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 High-level peroxide test strips inSyphon 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.