Health & Personal Care / TENS unit
OMRON Max Power Relief TENS Unit (PM500)
D0 No Radio — No radio at all. It cannot phone home.
The unplug test
There is nothing to unplug. The PM500 runs on 2 AAA batteries, you set intensity and mode with physical buttons, and the LCD on the unit itself shows the settings. It has no app, no pairing step, and no account of any kind — it cannot lose a feature to a server because it was never connected to one.
Why this tier: Manufacturer's own product page describes only physical controls and an LCD screen with no app, Bluetooth, or connectivity feature, and no FCC grant exists for the PM500 despite OMRON Healthcare holding 27 grants for other radio-equipped models (its wireless Bluetooth blood pressure monitors), establishing that the vendor files when it has a radio to declare.
Specifications
| Account required | none |
|---|---|
| Works offline | fully |
| Forced firmware updates | no |
| Radios | none |
| FCC ID | no intentional-radiator grant found |
| Local control | none |
| Phones home | none |
| Parts available | unknown |
| Availability | in stock |
| Price band | unknown |
| Vendor risk | 0 / 3 |
Where to buy
Open questions
- Current US price band not established.
- Parts availability for the control unit itself (beyond consumable electrode pads) not checked.
Sources
Class A is primary (manual, FCC filing, teardown). Class B is corroborated community reporting. Class C is never sufficient alone.
- A https://omronhealthcare.com/products/max-power-relief-tens-unit-pm500
Manufacturer product page: describes physical button controls and an 'Easy-to-read LCD', runs on 2 AAA batteries, and makes no mention of an app, Bluetooth, WiFi, or account of any kind for this model. — accessed 2026-09-03 - A https://fccid.io/search.php?q=OMRON+HEALTHCARE
FCC ID search for grantee OMRON HEALTHCARE Co., Ltd. (grantee code Q6Z) lists 27 grants, all Bluetooth/BLE blood pressure monitors (HEM-series). No grant exists for the PM500 or any OMRON TENS/pain-management model, and the vendor demonstrably files grants for its own radio-equipped products, making the absence for this model meaningful. — accessed 2026-09-03
History
- 2026-09-03 — First published at D0.
Last verified 2026-09-03 — 3 days ago.