Feature: 1. [Multifunctional]: Pulse oximeter measures oxygen saturation, pulse rate and perfusion index. Designed for children, compact and lightweight. 2. [How To Use]: Turn the pulse oximeter on, insert a finger into the rubber hole. Release the clamp and press the button to activate. The device enters standby mode after 8 seconds without a finger detected. 3. [Quick Display]: Advanced sensing technology provides results in approximately 5 seconds. 4. [TFT Display]: Low power consumption with a clear TFT screen. Display can be rotated in four directions for easy viewing. Compact and portable for home or travel use. 5. [Warranty]: If you have any issues, please contact our store. We will provide assistance. Specification: This fingertip pulse oximeter measures oxygen saturation, pulse rate, and perfusion index. Designed for children, small and portable. Features: [Multifunctional]: Measures oxygen saturation, pulse rate, and perfusion index. Designed for children, compact and lightweight. [How To Use]: Turn the device on, insert a finger into the sensor area. Release the clamp and press the button to begin measurement. Automatically powers down after 8 seconds of non-use. [Quick Display]: Utilizes advanced sensor technology to display results within 5 seconds. [TFT Display]: Clear TFT screen with low power consumption. Adjustable display orientation for comfortable reading. Portable design suitable for home or travel. [Warranty]: Please reach out to our customer service if you experience any problems. We are committed to helping resolve any concerns. Specifications: Item: Children Fingertip Pulse Oximeter Display Type: TFT Display Color Options: Yellow, Blue, Red SpO2 Measuring Range: 70%99% (1% resolution) SpO2 Accuracy: 2% (80%99%), 3% (70%79%); readings below 70% are not clinically reliable Pulse Rate Range: 30240 BPM Pulse Rate Accuracy: 1 BPM Battery: 3.7V 200mAh Material: ABS plastic Measurement Time: Approximately 5 seconds Auto Power-Off: After 8 seconds of no signal Device Size: 4.6 x 2.8 x 2.7 cm Package Size: 7.6 x 5.5 x 3.7 cm Package Weight: 29g Note: * Do not operate the device if it is wet or exposed to moisture. Avoid using immediately after moving from a cold to a warm, humid environment. * Nail polish or artificial nails may affect SpO2 accuracy. * High ambient light may interfere with readings. Shield the sensor from direct sunlight if needed. * Slight variations in color or size may occur due to lighting or manual measurement. We appreciate your understanding. Packing List: 1 x Children Fingertip Pulse Oximeter 1 x Lanyard 1 x User Manual (English)