> >>>>Jablotron JA-155M-GR wireless mini magnetic detector, gray
New Jablotron JA-155M-GR compact wireless magnetic detector for doors and windows, powered by a CR2032 battery with up to View larger

Jablotron JA-155M-GR wireless mini magnetic detector, gray

JA-155M-GR

New product

The Jablotron JA-155M-GR is a compact wireless magnetic detector for doors and windows. It operates at 868.1 MHz (Jablotron protocol), is powered by one CR2032 (typ. 2 years), supports bidirectional communication and offers up to 300 m open‑area RF range. Security grade 2.

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Jablotron JA-155M-GR is a miniature wireless magnetic detector designed to reliably detect the opening of doors and windows. Its small footprint and neutral gray housing allow discreet installation in residential and light‑industrial interiors.

The device communicates on 868.1 MHz using the JABLOTRON protocol with bidirectional transmission, enabling reliable status reporting and remote configuration without physical access. After enrolment the detector operates briefly in an accelerated mode, then switches to normal periodic communication to conserve battery.

The mechanical design simplifies installation and battery replacement: the cover opens by a latch and is secured with a locking screw. The unit includes an LED indicator and a tamper switch. The magnet can be fitted on the left or right side; when mounting on metal surfaces use the supplied plastic spacers to ensure correct operation.

Technical highlights:

  • Power: 1 x CR2032 lithium battery, 3 V / 230 mAh (battery not included)
  • Typical battery lifetime: 2 years
  • Low battery threshold: < 2.6 V
  • Quiescent current: 16 µA; maximum current consumption: 50 mA
  • Frequency/protocol: 868.1 MHz, JABLOTRON protocol; ERP <25 mW
  • RF range: up to 300 m in open area
  • Detector dimensions: 28 x 58 x 17 mm; magnet: 28 x 17 x 17 mm
  • Detector weight (without battery): 13 g; magnet weight: 16 g
  • Operating temperature: -10 °C to +40 °C; security grade 2 / environmental class II (EN 50131-1)

JA-155M-GR is intended for standard perimeter protection and is compatible with JA-100 series control panels (e.g. JA-102K, JA-103K, JA-107K, JA-152KR and newer). Installation should be performed by a trained/authorized technician following manufacturer guidelines. Dispose of batteries and the device according to local regulations.

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