TIMER 1-HOUR MECHANICAL SPRING DRIVEN 70MM DIAMETER Aluminium Dishes perforated sampling head which holds

perforated sampling head which holds either 60mm diameter contact plates or 90mm diameter petri dishes

metal retaining clip and heavy wall 1 litre conical flask with ground glass connection for vacuum seal

Supplied with spirit level and levelling screws

adapter for 100-240V 50/60Hz a

instruction manual and 9V battery

TIMER 1-HOUR MECHANICAL SPRING DRIVEN 70MM DIAMETER Aluminium Dishes perforated sampling head which holdsSpring driven clock movement, activated by setting the easy to read dial knob. The remaining time is clearly visible as a shaded area. With audible alarm and magnetic attachment. Overall 70mm diameter x 43mm deep.