Automatic power control to reduce power consumption and radio interference.
Radio signal modulation
GFSK
Radio communication range
up to 5,550 ft
Between the device and a hub (or a range extender) in open space. Radio communication may be unavailable in industrial refrigeration chambers with shielded panels. It is recommended to perform Signal strength test at the installation site.
Between the device and a hub (or a range extender) in open space. Radio communication may be unavailable in industrial refrigeration chambers with shielded panels. It is recommended to perform Signal strength test at the installation site.
Values in Ajax apps are updated at least once per minute, depending on the device polling interval.
Measurement range
from –22 °F to +122 °F
Measurement accuracy
±0.36 °F (from 32 °F to 122 °F)
±0.54 °F (from 14 °F to 32 °F)
±0.72 °F (from −4 °F to 14 °F)
±0.90 °F (from −22 °F to −4 °F)
Measurement pitch
0.18 °F
The minimum temperature change value recorded in the Ajax app.
Humidity measurement
Sensitive element
digital temperature and humidity sensor
Values in Ajax apps are updated at least once per minute, depending on the device polling interval.
Measurement range
from 0% to 100%
Measurement accuracy
±1.8%
When the temperature is above 32 °F.
At low temperatures, humidity measurement accuracy may decrease.
Measurement pitch
1%
The minimum humidity change value recorded in the Ajax app.
Additional features
Charts
of temperature and humidity
Available in Ajax apps. The data is updated in real time. The measurements are stored for up to two years.
Discrete value: 1 min.
LED indication
green: acceptable level
yellow: beyond acceptable levels
The LED indicator on the device enclosure lights up when a critical change in air quality is detected. A user can also enable the indication by touching the front-panel touch button on the detector.
Scenarios
responses to changes in temperature or humidity
For example, enabling plenum ventilation if air quality deteriorates.
The device stores all measured values if it loses communication with the hub (or radio signal range extender). Once the connection is restored, all values are sent to Ajax apps.
Recommendations
The device is designed only for indoor installation at any height. The SmartBracket mounting panel is not required.
After the device has been exposed to low temperatures, keep it at room temperature for 8–12 hours to prevent condensation and ensure stable sensor operation.
The device can be placed on a table or shelf.
Sabotage protection
Protection against spoofing
device authentication
Accelerometer
Signals attempts to detach the device from a surface, remove it from the mounting panel, or move from a table or shelf.
Communication loss detection
after 36 s
Detection time depends on Jeweller or Jeweller/Fibra settings.
United States
