Double Battery Holder with Sockets Classroom Essential Charts Automatic calibration with the press

Automatic calibration with the press of a button

You Can Calibrate the Tester with One Touch Button Using Buffer Powder

Synonym: 1

Comprising Five removable glass tubes in a sliding frame and supported in a water trough

use it only with doctor’s consultation

Double Battery Holder with Sockets Classroom Essential Charts Automatic calibration with the pressDouble Battery Holder with Sockets. To hold "D" cell battery, with plastic stand. Double, 0 3. 0V Premium Quality: Battery Holder is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes design, please contact us.