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Product guide

Beurer PO 45 Pulse Oximeter

The Beurer PO 45 pulse oximeter measures blood oxygen saturation, pulse rate and perfusion index. Its colour display offers four views and two graphical displays, while the supplied listing describes it for home monitoring and high-altitude exercise.

At a glance

Measures SpO₂, pulse rate and perfusion index according to the listing.
Four display views, two graphical displays and adjustable brightness.
Listing describes use at home and during high-altitude exercise.
Battery-powered design with a low-battery indicator, lanyard and belt bag listed.

Price

£21.99Save 56%

Reference price: ~~£49.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Shows several readings and visual indicators on one colour display.
Four view options and adjustable brightness offer flexibility in how readings are viewed.
Lightweight, portable design is reported by customers as convenient for travel.

Cons

Battery-life information is listed as 20 seconds, which is not a usable duration claim and should not be treated as runtime guidance.

Technical specifications

10 specifications

Identity
Brand	Beurer
Model	PO 45
Colour	Black

Measurements and display
SpO₂ measuring range	%70 - %100 SpO2
Display	The easy-to-read colour display has 4 available views and 2 graphical displays and adjustable brightness
Displayed readings and indicators	Displays oxygen saturation (SpO2), pulse rate (PRbpm), pulse bar, pulse modulation index (PMI) and pulse wave

Power and battery
Battery requirement	2 AAA batteries required. (included)
Battery life listed	20 seconds

Dimensions and installation
Dimensions and weight listed	12 x 8.3 x 5.8 cm; 30 g
Weight listed	0.03 Kilograms

What to know before buying

The listing describes the device as clinically validated for home use and suitable for people with heart failure, COPD or bronchial asthma, but these are manufacturer claims, not independent verification. Follow clinical advice for interpreting readings.

What’s in the box

Included

1 PO 45 pulse oximeter
2 1.5 V AAA batteries
1 lanyard
1 belt bag
1 set of instructions for use

Who is it for?

A good fit for

People seeking a portable fingertip device to view oxygen saturation, pulse rate and perfusion information.
Buyers wanting adjustable display brightness and multiple reading views.
Those looking for a monitor described for home use or high-altitude exercise.

Less suited to

Buyers needing a continuous-monitoring device or a stated battery runtime, neither of which is established by the supplied details.

Beurer PO 45 Pulse Oximeter · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 26,735 ratings

5 stars76%76%
4 stars15%15%
3 stars5%5%
2 stars1%1%
1 star3%3%

Customer feedback highlights ease of use, a bright and readable display, portability and perceived accuracy. These reports align with the listed colour screen and portable battery-powered design, but do not independently establish measurement accuracy. Opinions about battery life and value are mixed, so buyers who need extended use should seek clear runtime information.

Positive themes

Customers describe the device as easy to use and the display as bright and easy to read.
Customers report that it is lightweight and convenient to carry, including in luggage.
Customers describe it as well made and report satisfaction with its perceived accuracy.

Mixed feedback

Battery-life feedback is mixed, and the listing's 20-second battery-life entry does not clarify expected runtime.
Customer views on value are mixed.

Frequently asked questions

What does the Beurer PO 45 measure?

The listing says it measures oxygen saturation, pulse rate and perfusion index. Its display also shows a pulse bar, pulse modulation index and pulse wave.

Can the display be adjusted?

The listing specifies four available views, two graphical displays and adjustable brightness.

Are batteries included?

The product details list two included AAA batteries. The explicit package list also states two 1.5 V AAA batteries.

How long does the battery last?

The listed battery-life value is “20 seconds”, which does not establish a practical operating runtime. Check the selected listing for clarification.