B-33:B-33 7/30/10 9:36 AM Page 1 Series 3000 Photohelic ...

The Photohelic® Switch/Gage is a very versatile, precise pressure switch combined with the time-proven Magnehelic® pressure gage. Models are available with one or two phototransistor actuated relays. Gage reading is unaffected by switch operation.

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