Reed switch contact sensor opening when the door is opened. Normally closed. Compatible with Smart Stairway SS-26 LCD and Smart Stairway SS-26 LCD Pro series controllers. When connecting it instead of the sensor in the settings menu, the sensor type should be set to "IR", since when the door is closed, the sensor is in the closed position and sends a high signal (+5V) to the controller input, when the door is opened, the circuit opens and logic zero is applied to the controller input. This is absolutely similar to the principle of operation of an infrared sensor.
The main characteristics of the sensor:
- Supply voltage: 3.3-5 V;
- Output signal: TTL output (0-5 V);
- the maximum operating distance is 5 mm.
- Dimensions: 23 mm × 14 mm × 6 mm;
- Weight: about 15 g.
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