The Twist-Lock sensor, with locking pins and a dual o-ring seal, consists of a 12mm sensor and automatic temperature compensator permanently sealed into the housing. Using the sensor and an adapter, with several different connection sizes available, allows conversion of a standard pipe tee to a flow through sensor assembly.

The mounting system provides for continuous conductivity monitoring and convenient service capability for flow through applications. It can be used in by-pass streams, sample systems, or sensor stations via an adapter and/or pipe tee.

Dual external o-rings seal the adapter from any external process leakage. Internally, an o-ring between the sensor and housing prevents process contact with sealing epoxy, while undercutting "keys" sealing epoxy against heat or pressure separation. A ribbed barrel design permits ease of handling. Top threads allow for attachment of conduit if required. Twist-Lock adapters have a visible locking detent 90° from removal slot for positive electrode positioning, and a hexagonal shape for ease of installation or removal.