Meters & Detectors

A fabulous old resistance box of the type we used to use at school in the 50s. It is a great display item and would probably work fine if used for experiments. By W. & J. George & Becker Ltd., London & Birmingham. No 12313. ..

155mm glass thermometers in a clear pocket case. The case can be used as a handle. Available in blue or red spirit. Range -10 to 110C. ..

A versatile hanging thermometer mounted in a smart hardwood casing with brass trim. The bulb, which has been designed to extend beyond the wood so that air can circulate it more freely, is protected from breakage by a smart brass frame. Reads in Celsius and Fahrenheit. Red-stained alcohol is used as a safer (and easier-to-read) alternative to mercury. Length is 34 cm (13.5"), width 5 cm (2..

Liquid crystal thermometer strip which indicates body temperature when placed on the forehead. Very simple to use, just press the thermometer strip to the forehead, wait a few seconds and watch the liquid crystals inside change to show the external body temperature. ..

Victorian brass unit of 4 gas taps, 7.25" across. ..

Armillary Sphere hand coloured illustration by Christoph Weigel, published in Nuremburg c.1720. Size: 8" x 7" (20 x 18 cm). This is an original hand coloured illustration printed on one side only, on good quality thick paper. It is a genuine antique, approximately 288 years old. It is in good condition except for a small split in the fold with no loss. ..

Plastic, tubular newton spring balance, scaled in both grams and newtons. The spring mechanism is clearly visible and zero adjustment is incorporated. Length: 250mm overall, including ring and handle ..

Our thermometer & hygrometer is 6" across, with extra large numerals that can be easily read from right across a room. It has an overlapping lower dial that reads humidity (a good indicator of comfort). 11" high. The clear vinyl dial clings electrostatically to the outside of your window (like a car tax holder), so requires no fixings. ..