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The JA-183MB, brown color, offers a conveniently small size and great door detector features. It is designed to detect doors or windows opening. The door opening detector reacts to the removal of its magnet unit. It can trigger an instant or delayed intruder alarm. It is addressable and occupies one position in the alarm.

Specifications
- Power: 1x lithium battery type CR-123A (3.0 V)
- Typical lifetime: approx 3 years
- Communicating protocol: 868 MHz
- Radio coverage: approx. 300 m (open area)
- Dimensions: 31 x 75 x 23 mm
- Security level: grade 2, EN 50131-1, CLC/TS 50131-2-6, EN 50131-5-3
- Complies with: ETSI EN 300 220, EN 50130-4, EN 55022, EN 60950-1