Model X3
NextPM particulate matter sensing with temperature, humidity, and barometric pressure.
Model X3 is based on the Tera NextPM sensor. It brings particle and ambient-condition measurements together for people planning an air quality monitoring installation.
For more reliable PM readings in humid environments, the NextPM automatically regulates its built-in inlet heater when relative humidity inside the sensor rises above 60%. Moisture can make airborne particles grow and scatter more light, causing optical sensors to report too much PM—an effect that becomes especially pronounced above 80% RH. By drying the sampled air and particles, the heater reduces this overreading, though humidity can still affect results. Learn how Tera tested humidity regulation.
These photos show the production Model X3 enclosure. Model X3 uses a Tera NextPM particulate sensor and offers the same power-supply and communication choices as Model X2.
Connect Model X3 to the VisiblAir Cloud Portal for remote monitoring and historical data. Access is free for up to 10 sensors under one account; each additional sensor costs $5 CAD/month or $50 CAD/year, plus applicable taxes. See how the Cloud Portal works.
From $460.00 CAD
Base configuration: Wi-Fi, without a power supply. Options add to the base price.
Ready to order
- Availability: Orders normally ship within 3–5 business days after receipt.
- Shipping: Ships worldwide from Canada; cost is calculated at checkout. Duties and import taxes are the buyer's responsibility.
- Warranty and returns: 12-month warranty. Return and refund requests may be made within 30 days after delivery, subject to the return conditions.
- Cloud: Portal access is free for up to 10 sensors. Each additional sensor is $5 CAD/month or $50 CAD/year, plus tax.
- Power and connectivity: Choose a regional USB-C charger, rugged IP68 supply, or no charger; choose Wi-Fi or optional LTE.
School, office, or multiple units? Request a quote.
Configure your X3
Choose your power supply and communication module, then add your X3 to the cart.
Configured price:
Shipping charges and the full order total are shown at checkout. The cart loads when you add X3 to it. See shipping and returns and the privacy policy.
Specifications
- PM sensor: Tera NextPM optical sensor with active airflow and humidity management
- PM humidity control: automatic inlet heater regulates from 60% relative humidity inside the NextPM sensor
- PM outputs: PM₁, PM₂.₅, and PM₁₀ mass concentration
- PM concentration range: 0–1,000 µg/m³ for PM₁, PM₂.₅, and PM₁₀ (NextPM component specification, Arizona dust A1 equivalent)
- Particle diameter detection range: 0.3–10 µm (NextPM component specification)
- PM detection limit: <1 µg/m³ (NextPM component specification)
- PM linearity and repeatability: <5% linearity error; <3% repeatability error on the 15-minute moving average (NextPM component specifications)
- Temperature range and accuracy: −40 to 60°C; ±1°C
- Humidity range and accuracy: 0–100% RH; ±5% RH
- Barometric pressure: measured; range and accuracy pending confirmation
- Connectivity: 2.4 GHz Wi-Fi; LTE optional
- Power: USB-C (5 V); no charger, regional charger, or rugged IP68 power supply
- Data storage: Cloud Portal with historical data access
- Dimensions: 150 × 100 × 50 mm (pre-production)
- Warranty: 1 year
The PM figures above are Tera's NextPM component specifications. Final X3 system performance depends on integration and operating conditions. Tera lists −20 to 70°C as the NextPM component's operating temperature range.
Documents
Quick Setup Guide
Set up your Model X3 and connect it to the VisiblAir Cloud Portal with this bilingual French and English guide.
Download Model X3 Quick Setup Guide (PDF)Firmware Changelog
Review firmware releases, fixes, and improvements for Model X3 Wi-Fi and LTE.
Compare X3 and X2
Model X3 measures particulate matter, temperature, humidity, and pressure with a Tera NextPM particulate sensor. Compare all VisiblAir models.