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Simple Blood Oxygen & Pulse Monitoring

Place your finger inside the device to measure blood oxygen saturation (SpO₂) and pulse rate.

Blood Oxygen Measurement

Measures SpO₂ levels within a range of 70%–99%.

SpO₂ Accuracy: ±2

Pulse Rate Measurement

Measures pulse rate from 30–250 BPM.

Pulse Accuracy: ±2 BPM

LED Color Display

The LK87 uses an LED four-color display to show measurement information clearly.

Simple Finger-Clip Design

The finger-clip design makes measurement simple—insert your finger and view the results on the display.

Battery Powered

Powered by 2 × AAA batteries.

Rated Voltage: 3V
Rated Power: ≤30mW
Built-in Battery: No

AAA batteries are not included by default.