Sensors & alarm devices for industrial monitoring and safety

This category includes flow switches, temperature probes, level sensors, float switches as well as optical, acoustic and combined optical-acoustic alarm devices. They are used to monitor flow, temperature and level and to clearly signal faults or limit violations.

Flow switches monitor flow in pipelines, for example in cooling and lubrication circuits, heating systems or process plants. They generate an alarm when the flow drops below a threshold or stops completely. This helps to protect pumps, heat exchangers and equipment against dry running, overheating or insufficient cooling.

We supply various temperature probes such as Pt100/Pt1000 sensors, thermocouples and special surface or immersion probes. Important selection criteria are temperature range, medium (e.g. water, oil, air), required accuracy, mechanical design and connection type. If you describe your application, we can recommend suitable temperature sensors.

Both are used for level detection in tanks and vessels. Float switches operate mechanically with a float and change the contact state at specific levels. Electronic level sensors measure the level, for example capacitively or hydrostatically, and often provide an analogue output signal (e.g. 4–20 mA) for continuous evaluation in a controller or PLC.

Optical devices (such as LED beacons) and acoustic sounders (sirens, horns) ensure that faults, alarms or hazardous conditions are recognised immediately – even in noisy or complex environments. Combined optical-acoustic alarm devices further improve attention and are ideal for machines, control panels and safety-related areas.

Most sensors and alarm devices offer standard electrical interfaces such as potential-free relay contacts, transistor outputs or analogue signals (e.g. 4–20 mA). They can be connected directly to PLCs, controllers, display units or SCADA systems. It is important to match voltage, switching capacity and IP rating to the existing installation.

Many of our sensors and alarm devices feature robust housings with high IP ratings, wide operating temperature ranges and good resistance to moisture, oils and chemicals. For particularly demanding applications (e.g. aggressive media, elevated temperatures) you should carefully check the technical data or contact us for advice.

Yes, we will gladly support you. If you provide information about process medium, temperature range, pressure, installation conditions and the required type of signalling, we can suggest appropriate flow switches, temperature probes, level sensors and alarm devices and ensure that they can be integrated smoothly into your existing control system.