Safety leak sensors

Panasonic's SQ4 series is reported to be one of the first leak sensors in the industry to earn safety certification.

Featuring a two-stage detection system for improved productivity, the SQ4 simplifies preventative maintenance and maintenance planning. Features include: Category 4 Rated: when used in combination the SQ4-A sensor and SQ4-C11 controller, meet category 4/PLe/SIL3 requirements under ISO 13849-1:2008 Two Stage Detection: dual sensing outputs provide both a warning and safety-critical output for differentiation of leak severity.

Multiple Sensor Inputs: up to four sensors can be connected to each controller Independent Operation: sensor heads can also be used independently of the controller, meeting a Category 1 rating.

Safety Input Function: allows daisy chaining of multiple controllers along with safety peripherals such as e-stop and door switches.