Description
Ajax 57537.135.WH3 LifeQuality (9NA) UPC white
Product Details
LifeQuality Jeweller measures three things a room will not tell you on its own: carbon dioxide, temperature and humidity. CO₂ is the one that matters most and is noticed least — it climbs through a closed meeting room or a bedroom until concentration and sleep quality go with it, and nobody opens a window because nobody can smell it.
The readings are live in the Ajax apps, with thresholds that raise a notification when a level leaves the acceptable band. Because they are Ajax devices, those thresholds can also drive automation: a CO₂ reading above 1,100 ppm can switch on ventilation through a relay, humidity can trigger a dehumidifier, temperature can start heating — the same scenario engine that runs the security side.
Accuracy is ±30 ppm or ±3% on CO₂, ±0.36 °F on temperature and ±1.8% on humidity. It is wireless and battery-powered — two CR123A cells for up to three years — so it goes where the air actually needs measuring rather than where a cable can reach. Jeweller is Ajax's own two-way radio protocol: encrypted with a dynamic key, frequency-hopping to ride out interference, and continuously polled so a lost device is flagged within 36 seconds rather than going quiet unnoticed. Supplied in the white finish; the same monitor in black is stocked as 57536.135.BL3.
Features
- Measures CO₂, temperature and humidity
- CO₂ range 400 to 10,000 ppm, accuracy ±30 ppm or ±3%
- Temperature range 32 °F to 122 °F, accuracy ±0.36 °F
- Humidity range 0% to 100%, accuracy ±1.8%
- Live readings and charts in the Ajax apps
- Threshold notifications when a level leaves the acceptable band
- Drives automation scenarios — ventilation, heating, dehumidification
- Acceptable CO₂ level flagged to 1,100 ppm
- Comfort bands 57 to 70 °F and 30 to 60% humidity
- Wireless and battery-powered — no cable run required
- Up to 3 years on two CR123A batteries
- Jeweller range up to 5,600 ft in open space
- Black and white finishes
Specifications
| Technical | |
|---|---|
| Device Type | Wireless temperature, humidity and CO₂ monitor |
| Sensors | Digital temperature and humidity sensor | digital CO₂ sensor |
| CO₂ Measurement Range | 400 to 10,000 ppm |
| CO₂ Accuracy | ±30 ppm or ±3% |
| CO₂ Pitch | 1 ppm |
| CO₂ Acceptable Level | To 1,100 ppm |
| Temperature Measurement Range | 32 °F to 122 °F |
| Temperature Accuracy | ±0.36 °F |
| Temperature Pitch | 0.18 °F |
| Temperature Comfort Level | 57 °F to 70 °F |
| Humidity Measurement Range | 0% to 100% |
| Humidity Accuracy | ±1.8% |
| Humidity Pitch | 1% |
| Humidity Comfort Level | 30% to 60% |
| Battery Type | 2 × CR123A |
| Calculated Battery Life | Up to 3 years of autonomous operation |
| Communication Technology | Jeweller — proprietary two-way wireless protocol |
| Frequency Bands | 866.0–866.5 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 |
| Maximum Effective Radiated Power (ERP) | Up to 20 mW |
| Radio Communication Range | Up to 5,600 ft in open space |
| Tamper Alarm | Notifications on attempts to detach the device from the surface or remove it from the mounting panel |
| Encrypted Communication | Block encryption with a dynamic key |
| Frequency Hopping | Yes — to prevent radio interference and jamming |
| Protection Against Spoofing | Device authentication |
| Communication Loss Detection | After 36 s |
| Physical | |
|---|---|
| Dimensions | 3.03″ × 3.03″ × 1.36″ |
| Weight | 4.48 oz |
| Operating Temperature Range | 32 °F to 122 °F |
| Operating Humidity | Up to 85% |
| Protection Class | IP50 |
| Complete Set | Device, mounting panel, batteries (pre-installed), installation kit, quick start guide |
| Warranty | 24 months |
Specifications subject to change.
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