Digital Count Down/Count Up Timer with Clock Certified:Yes Full microscopic control of both

Full microscopic control of both loading and expelling means there is zero risk of losing samples

006411 13mm visotubes

Warranty: 12 months parts

0030078535 Replacing Old

or 2 AA alkaline

Digital Count Down/Count Up Timer with Clock Certified:Yes Full microscopic control of bothDigital Count Down Count Up Timer with Clock, White grey Sper Scientific 810015 Digital Count Down Count Up Timer with Clock 5 Channel. 4 independent channels each of which counts up or down for any interval from 1 second to 100 hours, plus clock button. Count Up Channel: 4 Count Down Channel: 4 Range: 100 Hours Resolution: 1 Second Optional Certification option available