Display type: TFT display SpO2. It is very suitable for oxygen and pulse reading, and has very small error margin. The bright OLED display can be clearly read in the dark, indoors or in bright sunlight.
eBay
RAYKUBE K20 9-language Biometric Fingerprint Door Lock Electronic Door Lock with Tuya APP/IC Card/Password/ Key Unlock
Aliexpress UK
The screen shows: pulse rate, SpO2, heartbeat sign, pulse waveform. One button operation and low battery indication. Driven by2 pcs 27A batteries (not included) making it easier to be brought with during trip.
eBay
Wifi Smart Door Lock with Handle Keyless Entry Fingerprint Digital Lock Free App Remote Control Door 35-120mm
Aliexpress UK
It has a comfortable rubber cushion that provides extra stability and improves accuracy. With an efficient and long battery life, it works on just 2 x AAA batteries and takes just a few seconds to record.
eBay
XSDTS 3D Face Smart Door Lock Digital Password Electronic Key IC Card APP Unlock Fingerprint Locks for Home House Apartment
Aliexpress UK
✔️ Perfect for monitoring respiratory conditions, fitness recovery, or general wellness. Get precise readings of yourblood oxygen saturation andheart rate in just8 seconds. ✅High-Definition LED Display.
eBay
Door Stopper Baby Safety Door Lock Door Stops Hinge Anti Pinch Hand Kids Children Finger Protector
Aliexpress UK
Big screen support multi direction display. 2 AAA battery included and one button operation.
eBay
3D Face Recognition Unlock Digital Door Lock With Camera FIngerprint Password Unlock Keyless Electronic Door Lock
Aliexpress UK
✅ PERFUSION INDEX indicates pulse strength at sensor site. ✅ ACCURATE HEART (PULSE) RATE READINGS shown to 1 bpm resolution. ✅ ACCURATE BLOOD OXYGEN READINGS (SpO2) shown to 1% resolution. Country of origin : China.
eBay
New Smart Door Lock With Bluetooth-compatible Tuya APP Digital Electronic Lock Smart Home Wooden Door Lock Biometric Fingerprint
Aliexpress UK
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Small and light weight, convenient to carry. Power by: 2xAAA Battery (not included ). Color: Bule, White.
eBay
Waterproof Sliding Door Smart Lock TTLock App Alexa Fingerprint Digital Code RFID Card Anti-Lock Aluminum Glass Electronic Lock
Aliexpress UK
Clear TFT Display: Features a bright, easy-to-read digital screen that shows results clearly. Portable & Easy to Use: Compact, one-button operation. Simply insert your finger for a reading within seconds.
eBay
2/5pcs Baby Safety Door Stopper for Newborn Furniture Protection Anti-pinch Hand Cute Animal Care Child Lock Finger Protector
Aliexpress UK