
Wireless smoke detector Ajax EN54 FireProtect 119922.275.BL1 (black, without siren)
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- General
- Product nameAjax EN54 FireProtect (Smoke) Jeweller
- TypeWireless addressable point smoke detector
- Compliance standardsEN 54-7, EN 54-25, Directive 2014/53/EU (RED)
- Smoke detectionDual-spectrum optical sensor with blue and infrared LEDs; patented dustproof, insect-resistant smoke chamber; no reaction to water vapor
- False alarm protectionHazeFlow 2 algorithm distinguishes smoke from steam
- Sensor elementDual-spectrum optical sensor
- Alarm transmissionWithin 3 seconds to the CIE
- Alarm typeAcoustic, sound volume up to 85 dB at 1 m
- Sound pattern32 tones, adjustable via Ajax app or PRO
- Communication rangeUp to 1,700 m in open space with CIE; extendable via range extender (sold separately)
- Radio technologyJeweller; frequency hopping, auto power adjustment, and loss detection
- Radio frequency bands866.0–866.5 MHz, 868.0–868.6 MHz, 868.7–869.2 MHz, 905.0–926.5 MHz, 915.85–926.5 MHz, 921.0–922.0 MHz (region-dependent)
- ERP (Max)Up to 20 mW
- Battery type2 × CR123A (pre-installed)
- Battery lifeUp to 5 years
- Battery replacementTool-free, no enclosure disassembly required
- Mounting methodSmartBracket with 90° rotation and optional locking
- Remote configurationSupported via Ajax apps
- Operating temperature range–10 °C to +50 °C
- Operating humidityUp to 80%
- Enclosure colorBlack, white
- Dimensions124 × 124 × 54.2 mm
- Weight281 g
- Protection classIP21C
- Flammability ratingUL 94 V-0
- CompatibilityWorks with CIE and Ajax range extenders; supports Solo 332 and similar smoke dispensers
- Included in packageEN54 FireProtect Jeweller detector, 2 × CR123A batteries (pre-installed), SmartBracket, installation kit, quick start guide
