Corridor lens JS-7904

JS-7904 is an interchangeable corridor lens for Jablotron JA/JS PIR motion detectors. It changes the detector's coverage to a long, narrow beam intended for monitoring hallways and other linear passageways where focused detection is required.

The lens produces an approximate detection zone of 25 m in length and about 3 m in width at the recommended mounting height of 2.5 m. JS-7904 simply replaces the standard lens in compatible JA/JS PIR housings without altering the detector’s electrical parameters.

Key benefits:

• Directed coverage for long corridors and stairwells;
• Minimizes lateral coverage to avoid unwanted detections outside the corridor;
• Quick, reversible lens replacement in supported Jablotron detectors.

During installation verify sensitivity and coverage in the actual environment to ensure reliable operation. The JS-7904 is an optical accessory—system configuration and power remain those of the host detector.