FAQ

Questions, answered.

Things prospects and customers ask most often. If yours isn't here, get in touch.

The product

What does the sensor measure?

PM₂.₅, respirable fraction, PM₁₀, plus humidity and temperature. Range is 0–1000 mg/m³ depending on dust properties. Measurement frequency is 15 seconds.

How accurate is it?

Varies depending on dust properties. The ±15% figure is for amorphous silica.

Will it work with our specific dust?

Probably yes. We've calibrated and verified Arpuro for microsilica, crystalline quartz, charcoal, various carbon dusts, ferro-silicon, and cement. If your material isn't on that list, on-site field calibration during commissioning tunes the sensor to your dust. Tell us what you measure and we'll confirm.

Can it measure outdoor or stack emissions?

Not currently. Arpuro PM01V00LTE is built for indoor airborne dust monitoring. For stack emissions or outdoor environments, talk to us — we can advise on the right approach, and we have an outdoor model on our roadmap.

How does it compare to spot sampling?

Spot samples (stikkprøver) give you one data point a few times per year. Arpuro gives you a measurement every 15 seconds, continuously. That changes what the data is for — instead of compliance documentation, you can identify which task, shift, or process generates dust spikes, and measure whether interventions actually work.

Deployment

What does installation involve?

A power supply and a place to mount it. The sensor connects automatically over LTE-M cellular — no Wi-Fi, no firewall configuration, no IT involvement. Most installations are operational the same day. Field calibration and commissioning is done by Arpuro Labs engineers.

Does it need IT or network access?

No. The sensor uses cellular (LTE-M) and connects to our cloud directly. Your IT department doesn't need to do anything.

What are the environmental limits?

Operating temperature −20 °C to 70 °C. Humidity must be non-condensing. Power: 12 V, up to 6.7 A (80 W).

How is it mounted?

DIN rail or wall mount via the standard bracket on the back. Dimensions: 142 × 152 × 111 mm.

Didn't find your answer?

Tell us what you measure and we'll come back with specifics.