Boyle-Mariotte's Law Apparatus Science at Home_General Science Supplies providing a more rigid mounting

providing a more rigid mounting platform than a meter-rule for lens and mirror investigations

Yellow 150mm 4mm-stackable safety lead rated to 12A with shrouded nickel-plated pins

1% accuracy on double silk-covered constantan windings

hybrid electronic control unit

Heavy-duty die-cast alloy boss head with a painted gray finish and two adjustable thumbscrews

Boyle-Mariotte's Law Apparatus Science at Home_General Science Supplies providing a more rigid mountingMarriot style Boyle's Law apparatus on a 250 by 175mm ABS plastic base with a 50mL gas syringe coupled to a pressure gauge for direct piston and gauge P V data collection.