← The shop
Testing Or Device
Polar H10 Heart-rate monitor with alarm
Equipment ~$90
The strap itself is the accurate part: near ECG-grade heart rate, which is what pacing against a ceiling needs. The strap does not sound an alarm on its own; the threshold alarm comes from the free Polar Beat app paired over Bluetooth, where you set your ceiling and it alerts you when you cross it.
Some links earn us a commission. It never affects our picks or grades. See our affiliate disclosure.
Educational only, not medical advice. Talk to a doctor about your individual circumstances before acting on this.
Called for in
- The Energy Envelope: Pacing for ME/CFS & Long COVID · Nancy Klimas
- POTS & Orthostatic Intolerance: The Basics · YourProtocol
Experts who call for it
Choose your tier
Tiered options are coming soon. Today, every pick above is our single vetted recommendation.