Keanor 331 Fingertip Pulse Oximeter with OLED Display, SpO₂ and Pulse Rate

For people who need to keep an eye on blood oxygen saturation or pulse rate at home, the Keanor 331 puts both readings within reach in a compact fingertip monitor. It is designed for everyday wellness tracking and can also support monitoring during oxygen therapy or sports recovery.

A one-button operation keeps routine readings straightforward, while the four-way rotating OLED display makes results easier to view from different positions. Alongside SpO₂ and pulse rate, the screen shows a pulse bar and plethysmograph waveform.

Choose it for quick checks at home, or take it along for use at the gym or while travelling. The included AAA batteries and lanyard make it convenient to have ready for everyday monitoring.

Key points

The Keanor 331 measures SpO₂ and pulse rate, presenting both readings alongside a pulse bar and waveform on its OLED screen. The display rotates in four directions, so you can view the information from different angles without having to reposition yourself to read it. A single-button design keeps the process simple, and automatic power-off helps conserve battery life after use.

This is a Health Canada-licensed fingertip pulse oximeter. It suits people who want a dedicated device for checking readings at home, rather than relying on a broader collection of wellness tools. For more portable use, its compact design and included lanyard make it practical to carry between home, the gym and travel. Two AAA batteries are included.

Buyers highlight the quick readings and straightforward operation, with ease of use also coming up as a positive. These are user impressions, while the monitor’s documented purpose is to display SpO₂ and pulse-rate readings.

Everyday use

For a home check, place the monitor on a fingertip and use the one-button control to take a reading, the OLED screen presents the results with the pulse bar and waveform. The rotating display is useful when the device is held at an angle or when a clear view is more comfortable from a different position. Automatic shut-off supports battery-conscious day-to-day use, and the lanyard offers a handy way to keep the monitor close by or carry it between locations.

The choice between a monitor kept at home and one that can travel often comes down to how you plan to use it. The Keanor’s small fingertip format is suited to both a regular home routine and occasional checks on the go, without changing the basic one-button operation.

Who it’s for

This model is intended for people tracking blood oxygen and pulse rate as part of daily wellness routines, oxygen therapy monitoring or sports recovery. Its simple control may also appeal to seniors or anyone who prefers a direct, uncomplicated way to take a reading. If you want the two readings presented together with a waveform and pulse bar, the display provides that information at a glance.

Questions before you buy

What does the Keanor 331 measure? It displays blood oxygen saturation (SpO₂) and pulse rate, with a pulse bar and plethysmograph waveform also shown on screen.

How do you operate it? The monitor uses one-button operation. Its four-way rotating OLED display lets you view the readings from different angles, and it switches off automatically after use.

What is included for everyday use? The set includes one Keanor fingertip pulse oximeter, two AAA batteries and a lanyard, so the batteries are ready for use with the monitor.

Is it worth it?

For someone looking for a portable fingertip monitor for SpO₂ and pulse-rate checks, the Keanor 331 brings the essentials together in an easy-to-operate format. Its rotating OLED screen, waveform display, automatic shut-off and included batteries support a straightforward routine at home or while travelling. It is a practical fit when you want these readings available in a compact device for daily wellness tracking, oxygen therapy monitoring or sports recovery.