https://www.turck.us/en/monitoring-of-quarter-turn-actuators-5245.php
Monitoring of Quarter Turn Actuators - Turck Inc. USA
Turck's inductive DSU35 dual sensors capture the valve position of quarter turn actuators.
quarter turn actuatorsmonitoringturckincusa
https://www.puffer.com/products/valves-actuators-regulators/actuators/quarter-turn-actuators/
Quarter-turn Actuators
quarter turnactuators