Battery
5200mAh (5 hours with screen
powered on, 11 hours with screen
powered off)
Input voltage
DC - 5V
Input current
1.8A
Operational temperature
11
0 - 50
℃
Storage temperature
-20 - 50
℃
Operational humidity
5 to 95% RH, non-condensing
Physical size
184 x 146 x 48mm
(7.2 x 5.7 x 1.9in.)
Product weight
800g
(1.76lb)
Endnotes
1. All specifications are at 2
σ
significance.
2. Accuracy is specified over operating temperature range. For accuracy in relation to absolute measure-
ments, uncertainty of calibration gas mixtures (+/-1% currently) is to be added to the specified accuracy.
3. Accuracy is defined both at exit from factory, and also after 3 weeks of continuous operation in normal
IAQ applications, utilising ABC function. Rough handling and transportation might result in a reduction of
sensor accuracy. With time, the ABC function will tune the readings back to the correct numbers.
4. Sensor is designed to measure in the range 400 to 2000ppm with specified accuracy. Exposure
to concentrations below 400ppm may result in incorrect readings. Readings above 2000ppm will be
displayed.
5. Included with Sensedge standard package.
6. Precision is defined upon all devices being powered on at the same instant, in the same environment.
7. TVOC measurement is relative, and defined in the range of 125 to 600ppb with specified accuracy.
Exposure to extremely high concentrations of VOCs may result in incorrect readings.
8. Included with Sensedge standard package.
9. Accuracy is defined upon fifteen-minute averages. Due to non-uniform distribution of particulate
matter, fluctuations may occur at higher measurement frequency.
10. The Sensedge is calibrated during the manufacturing process using a standardised aerosol mix.
The default calibration is appropriate for most applications, as it simulates the wide variety of ambient
aerosols found in urban locations. When connected to the Kaiterra cloud, by default, the Sensedge’s
calibration factor will automatically be adjusted according to the geographic location of the device, using
cloud based calibration. Calibrations are updated in real time to ensure high accuracy as the composition
and photometric response of the ambient aerosols changes. Because optical mass measurements are
dependent upon particle size and material properties, there may be times in which a custom correction
factor would improve your accuracy for a specific aerosol. When more accurate measurement data
regarding specific aerosols is required, custom correction factors must be developed for said aerosol. A
custom correction factor is a multiplier applied to raw data to more closely represent the desired results.
Custom correction factors are linear and are good only for a specific aerosol and a specific application or
work area. A custom correction factor can be developed by comparing a statistically valid number of side-
by-side gravimetric and photometric samples.
11. When moving from a cold to a warm environment there is a risk of condensation. To avoid influence on
the accuracy of the instrument, it is important to allow it to adjust to the environment for a few minutes
before usage.