Sensor engineering
Verified sensors, transparent data
Each JAMES monitor pairs specific optical and gas sensors with onboard processing. We document what every model measures, so you can compare capabilities before you buy.
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Indoor metrics tracked, by model
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Steps from sample to app
Detection methods
How each sensor measures
Sensor types differ by model. The details below describe the detection method for each indoor metric JAMES tracks where supported.
PM2.5 and PM10
Laser optical sensors detect airborne particles by measuring light scattered as air passes through a sensing chamber. Results are reported as particulate concentration, depending on model.
CO₂
NDIR (non-dispersive infrared) sensors measure carbon dioxide by how much infrared light the gas absorbs. This is the method used on CO₂-equipped models.
Temperature and humidity
Digital environmental sensors report ambient temperature and relative humidity. Accuracy and range are listed per model on each product page.
From sample to app
How readings reach your phone
Sampling, processing, and delivery follow the same four steps on every supported model.
01 Sample
Sensors take continuous readings of particulates, gases, temperature, and humidity.
02 Process
Onboard algorithms convert raw signals into air quality values and trend data.
03 Connect
Readings sync over Wi-Fi to the JAMES app for real-time viewing and history.
04 Act
Alerts and smart home triggers respond when readings cross thresholds you set.
Find the monitor that fits your space
Compare sensor coverage and measurement details by model, then choose the one that matches your home.