Double check ready for winter
18th October 1974, Page 51
18th October 1974
Page 51
Page 51, 18th October 1974
— Double check ready for winter
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Duo-Chek is designed to optically test the specific gravity of radiator anti-freeze or for checking battery _condition. A small sample of coolant or battery electrolyte from individual cells is placed on the measuring surface and its SG read off a scale which is seen through the eyepiece.
The equipment is claimed to be less prone to damage than conventional hydrometers.
Price: £20.15 Made by: British American Optical Company Ltd, 820 Yeovil Road, Slough, Bucks.