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The JA-82M is an "invisible" magnetic sensor for the majority of window frames, powered by 2 CR2354 lithium button batteries. Enrollable to control panels, UC and AC receivers (to trigger relays) and JA-80L indoor sirens (to indicate activation by sound). The battery-powered detector communicates via OASIS radio protocol.

Specifications
- Power: Lithium battery, type 2 x CR2354 (3.0 V 1 Ah)
- Typical battery lifetime: approx. 3 years (for 5 daily activations maximum)
- Communication band: 868 MHz, Oasis protocol
- Communication range: approx. 200m (open area)
- Dimensions: 192 x 25 x 9 mm
- Operational EN 50131-1: II. internal space
- Operational temperature range: -10 to +40 °C
- Classification: Grade 2 accordong to EN 50131-1,CLC/TS 50131-2-6, EN 50131-5-3
- Complies with ETSI EN 300220, EN 50130-4, EN 55022, EN 60950
- Can be operated according to VO-R/10/05.2006-22