New Products
The bell jar (named for its shape) and vacuum plate are supplied with a battery-operated electric bell. This pump plate and bell jar can be used to demonstrate the nature of sound waves by showing that sound does not exist in a vacuum. As air is pumped out of the jar the sound from the bell becomes fainter and fainter until it disappears. Includes bell jar, vacuum plate with valve, rubber seal, bell and instructions Bell may be removed for... more info
Boiler and Cooling Tower pH Portable Meter The HI-99141 is a waterproof, portable pH and temperature meter specifically designed for boilers and cooling towers. The HI-729113 pre-amplified double junction pH probe features a flat tip sensor that is easy to clean and prevents solids in solutions from collecting on the sensor. The titanium body of the HI-729113 functions as a potential matching pin for increased stability of readings and... more info
Plating pH Portable Meter The HI-99131 is a waterproof, portable pH and temperature meter specifically designed for use in plating baths. The HI-629113 pre-amplified, double junction pH probe features a recessed flat tip that is easy to clean and prevents solids in solutions from collecting on the sensor. The titanium body of the HI-629113 functions as a potential matching pin for increased stability of readings and extended sensor life. ... more info
The caffeine molecule is enameled in white on the side of this 400 mL beaker. Brand: Technos more info