Shop / Long-Term Kits, Case of 25
Long-Term Kits, Case of 25
25 long-term kits for year-round programs and multi-unit properties.
$775Lab fee and return mailer included
Online ordering is not open yet · Trade account required
About 99 to 380 days from order to report with standard shipping.
In the box
- 25 Ridgewell Long-Term Radon Test Kits
- 25 prepaid return mailers
- Batch assignment and reports by property in My Tests
Best for
- Property managers
- Housing programs
- Schools and child-care facilities
Specifications
| Test type | Long-term, alpha track |
|---|---|
| Test length | 91 days to 12 months |
| Measures | Radon in air, reported in pCi/L with the laboratory’s uncertainty and detection limit |
| Report | Online in My Tests, usually within 2 business days of the lab logging the sample in. PDF download. Share links. |
| Laboratory | Independent analytical laboratory |
| Sample return | Prepaid, tracked mailer. The lab accepts a device up to 30 days after the stop time. |
| Use by | 18 months from shipment, printed on the box. We don’t analyze expired devices; we replace them. |
| Shipping | Standard 3 to 5 business days, $5.95; free over $75. Expedited 2 business days, $14.95. |
| Account | Ships to approved trade accounts. Serials pre-assigned to your account; assign each kit to a property in the field. |
About this kit
For property managers and housing programs that test on a schedule. Serials are pre-assigned to your account; reminders go to the account contact when the minimum exposure is reached.
Timeline
- Delivery, standard3 days to 6 daysKits leave within one business day of your order.
- Measurement91 days to 365 days91 days minimum; up to a year for the best average.
- Sample return by mail2 days to 5 daysPrepaid and tracked. Mail it the day you stop the test.
- Laboratory processing3 days to 4 daysUsually 2 business days after the lab logs the sample in.
About 99 to 380 days from order to report.
How to test
- Register the kit by scanning the code on the box or entering the serial and activation code.
- No closed-house conditions needed. Live normally.
- Place the device on the lowest level you live in, 20 inches or more off the floor, away from drafts, kitchens, and bathrooms.
- Open it and log the start time in My Tests.
- After 91 days or more, close it, log the stop time, and mail it the same day.
- Read your report when we tell you it is ready.
Questions
How accurate is this test?
The laboratory reports every result with its measurement uncertainty and detection limit. Radon varies by day and season, so the EPA asks for a second test before mitigating on a short-term result at or above 4 pCi/L, and recommends a long-term test for the yearly average.
What if I mail it late?
The lab accepts a device up to 30 days after the stop time. Past that it cannot be analyzed; we send a replacement at no charge the first time.
Is the lab fee really included?
Yes. The price covers the device, analysis, return postage, reminders, and your report. Nothing to pay when you mail the sample.
Can I share the report?
Yes. Every report has a PDF download and a share link that is read-only and revocable.