Magnifiers & Viewers

A useful aid when soldering, gluing, etc.

The simplest and cheapest way to observe CO2 release! Ideal for individual student use. These respiration chambers can be part-filled with lime water or bicarbonate indicator solution, the organism or material to be tested placed in the top chamber and the carbon dioxide given off or expired can be observed by change in the solution. Observation is easy due to the transparency of the box. The apparatus consists of an external chamber with an internal sample holder which is perforated to allow the exchange of gases. This holder prevents contact between the sample and solution below. Dimensions (Diameter x H): 35 x 75mm.

Observe living creatures in this ventilated viewing pot with 5x magnification lid. Clear base with micro ruler.

These Pooters are designed not to be perfectly round so that bugs will find a crevice to hide in and are easier to observe. The jar contains two holes; one of which has a fine mesh covering to prevent bugs being drawn into the mouth. Two lengths of tubing (removable for easy washing) are supplied.

With two plano-convex glass lenses in folding plastic moulded body. Diameter 17 mm.

A 35 mm optical quality acrylic hand lens. Supplied in packs of 10.

A 50 mm diameter optical quality acrylic hand lens. Supplied in packs of 10.