You searched for "Monitoring Module"
Festo
Festo Proximity Sensor
Part: SMEO-1-S-LED-24-B
Festo proximity sensor with M8 connector and LED indicator for cylinder monitoring.
Festo
Festo Pneumatic Position Detector
Part: SMTO-1-PS-S-LED-24-C
Rugged position detector monitors pneumatic equipment status in industrial environments.