Does the job. Was very affordable but cheaply made. Works fine. Just feels cheap. Blue light background. C or f. You can calibrate the temp. Beeps for lows or highs. Has house mode too. But house mode is useless.
Track Your Oxygen Levels And Heart Rate With IProven Fingertip Pulse Oximeter β Includes Battery, Case, And Lanyard In Blue
49 Review
Impressive IPROVEN BPM-417 - Digital Wrist Blood Pressure Monitor For Home Use - Large Cuff And Heart Rate Monitor - Real-Time BP Reading With Wrist Guide, Movement Sensor, And Backlight
42 Review
POLAR H10 HR Sensor: Bluetooth Enabled, ποΈ Black, M-XXL β Advanced Accuracy for Heart Rate Monitoring
39 Review
Smart bracelet Xiaomi Mi Smart Band 5 Global, black
244 Review