JA-157P
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The JA-157P wireless outdoor detector with curtain lens characteristics is designed to indicate disturbances outside the building caused by human bodies.
It is a dual zone outdoor detector by Optex with a 5°angular width detection zone which makes it very suitable for guarding narrow spaces such as balconies, French doors, terraces, etc.
It is supplemented with a transmitter compatible with the JABLOTRON 100 system. The device is equipped with dual-beam optics with a high immunity against false alarms and the detection of small animals. The detector has an anti-masking function - i.e. protection against shielding its view.
The detector is also equipped with three tamper contacts. One on the detecting part and the next two on the transmitter part with both of them immediately reporting tampering of the detector or removal from the installation place.

Technical specifications
- Power: 1x type CR123A (3 V / 1500 mAh) lithium battery
- Please note: Battery is not included
- Average battery lifetime: approx. 3 years (with 120 s save mode)
- Communication band: 868.1 MHz, JA-100 protocol
- RF range - distance from the control panel: up to 300 m (open area)

Optex detector parameters
- Detection characteristic: 2 or 5 m / 5 °
- Detector installation height: 0.8 – 1.2 m
- Object motion speed: 0.3 – 1.5 m / s
- Detector cover conformance: IP55
- Environment according to EN50131-1: IV
- Operational temperature range: -20 °C to +60 °C
- Max. relative humidity: 95 %
- Dimensions: power supply with transmitter 34 x 154 x 43 mm
detector: 34 x 154 x 43 mm
- Weight: 190 g
- Security grade: according to OPTEX
- Complies with: ETSI EN 300 220, EN 50130-4, EN 55022, EN 60950-1, EN 50581
- Weight: 620 g
- Can be operated according to: ERC REC 70-03