BK 6 drying time recorder

4 speed drying time recorder with 6 tracks

The BK 6 drying time recorder has independently operating tracks allowing tests to be made at different start times. Pairs of tracks operate at the same speed, and a wide range of travel times are available. Travel times of 6, 24 and 48 hours are all considered as standard. A time scale on the front cover is graduated to suit the instruments drying time ranges. Each pair of tracks has its own individual operating switch.