Airthings View Plus vs Kaiterra Laser Egg+ CO2: Which Should You Buy?
A spec-by-spec comparison of the Airthings View Plus ($300) and the Kaiterra Laser Egg+ CO2 ($200) — accuracy, sensors, connectivity, and which one fits your situation.
Quick Verdict
The Kaiterra Laser Egg+ CO2 is $100 cheaper; the Airthings View Plus tracks more parameters (7 vs 4); the Kaiterra Laser Egg+ CO2 is the portable option.
Choose the Airthings View Plus if you want the fuller picture (CO2, Temperature, Humidity, Radon, VOC, PM2.5, Atmospheric Pressure).
Choose the Kaiterra Laser Egg+ CO2 if you want to spend less, or you will carry it between rooms or when travelling.
Specs Side by Side
| Feature | Airthings View Plus | Kaiterra Laser Egg+ CO2 |
|---|---|---|
| Price | $300 | $200 |
| Sensors | CO2, Temperature, Humidity, Radon, VOC, PM2.5, Atmospheric Pressure | CO2, PM2.5, Temperature, Humidity |
| Sensor Type | NDIR | NDIR |
| CO2 Accuracy | ±50 ppm | ±50 ppm |
| CO2 Range | 400-5000 ppm | 400-10000 ppm |
| Connectivity | Bluetooth, WiFi | WiFi, Bluetooth |
| Display | Yes | Yes |
| Portable | No | Yes |
| Battery Life | USB powered + battery backup | 8 hours |
Green highlights the stronger spec where there is a clear winner.
Frequently Asked Questions
Which is better, the Airthings View Plus or the Kaiterra Laser Egg+ CO2?+
The Kaiterra Laser Egg+ CO2 is $100 cheaper; the Airthings View Plus tracks more parameters (7 vs 4); the Kaiterra Laser Egg+ CO2 is the portable option. Choose the Airthings View Plus if you want the fuller picture (CO2, Temperature, Humidity, Radon, VOC, PM2.5, Atmospheric Pressure). Choose the Kaiterra Laser Egg+ CO2 if you want to spend less, or you will carry it between rooms or when travelling.
Is the Airthings View Plus or Kaiterra Laser Egg+ CO2 cheaper?+
The Kaiterra Laser Egg+ CO2 is the more affordable option at $200, versus $300 for the Airthings View Plus.
Do both use real CO2 sensors?+
The Airthings View Plus uses a NDIR sensor; the Kaiterra Laser Egg+ CO2 uses a NDIR sensor. NDIR and photoacoustic sensors measure CO2 directly, unlike eCO2 estimators.
Which measures more air quality parameters?+
The Airthings View Plus tracks more, with 7 parameters (CO2, Temperature, Humidity, Radon, VOC, PM2.5, Atmospheric Pressure), compared with 4 for the Kaiterra Laser Egg+ CO2.
Neither One Quite Right? Consider These
Other monitors in the same class, ranked on sensor accuracy first.
Aranet Aranet4 Home
$200NDIR sensor · ±50 ppm · Built-in display
Research-grade ±50 ppm accuracy and runs 2+ years on a charge.
AirGradient ONE
$150NDIR sensor · ±50 ppm · Built-in display
Research-grade ±50 ppm accuracy and tracks 6 metrics in one unit.
Temtop M2000
$130NDIR sensor · ±75 ppm · Built-in display
NDIR sensing with a 0-5000 ppm range.
Browse the full monitor directory →
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