The protocol test
Alpha-track long-term kit (C-NRPP-listed)
A passive detector you place for 3+ winter months and mail to an accredited lab — the exact test Health Canada's guidance is written around, and the cheapest defensible answer.
Gear guide · Air · updated October 2, 2026
Radon monitors & test kits
A lab-analyzed long-term kit is what Health Canada's protocol is built on — it produces the defensible 3-month average you make decisions with. A continuous digital monitor complements it: you watch levels move with seasons and renovations, and you verify a mitigation system keeps working year after year.
Not sure this category applies to your home? The 30-second screener flags it if so, and the radon testing guide covers the testing side.
The battery monitor
Airthings Corentium Home 2
Battery-powered digital monitor with day/week/long-term averages on the display — easy to move room to room, and the long-term number is the one that matters.
The fast reader
Ecosense RadonEye
The consumer monitor with the most sensitive readout — reacts in hours rather than days, which makes it the tool for watching what air-sealing or a new mitigation fan actually did.
Before you buy
- Decisions follow the 3-month average, never a daily readout — radon swings with weather.
- After mitigation, a continuous monitor is the cheap insurance that the fan is still doing its job.
- Levels above 200 Bq/m³? That's a C-NRPP mitigation quote, not a bigger monitor.
Some links here are affiliate links — as an Amazon Associate, AuditYourHome earns from qualifying purchases, at no extra cost to you. Picks are chosen on merit; no manufacturer pays for placement, and prices shown are planning bands, not quotes.
Measure, then act
Gear works best inside a plan: the planner reads your home's era, heating, and symptoms, flags the tests that matter, and puts the right categories on your list.
Also in gear guides: Indoor air quality monitors · Air purifiers (HEPA) · Carbon monoxide alarms