CS- 1429 (Open circuit) and CS-1429-2 (Closed circuit)

The CS-1429 is our latest design, and the most popular by far. The patented, totally enclosed unit is maintenance free, has no moving parts, per se, contains no mercury, (environmentally safe), has no battery nor does it require power, has a test line, can be affixed to the flow pipe as shown or hung free from somewhere above.