Color:#1 Feature: 1. Support manual brightness adjustment function, can be adapted to use in different environments. 2. Support automatic shutdown function, automatic shutdown when no operation in 8 seconds, saving power. 3. With a buzzer sound, it can be set to open and close, which is more convenient to use. 4. The internal finger contact part is made of silicone material and feels comfortable. Specification: Condition: 100% Brand New Item Type: Finger Pulse Meter Material: ABS Display Mode: High Definition Two-color LED Screen Measurement Range: 70% to 99% Measurement Accuracy: ±2% within the Range of 80% to 99% ±3% within the Range of 70% to 79% 70% or less is not required Use Environment: Use Temperature: 5℃-40℃ Storage Temperature: -10℃-40℃ Ambient Humidity: 15%-80% When Working, 10%-80% Storage Atmospheric Pressure: 86kPa-106kPa Battery Model: 2 x 1.5V AAA Batteries (Battery Not Included) Close Mode: Automatic shutdown when no operation for 8 seconds Pulse Rate: Measuring Range: 30BPM-240BPM Measurement Accuracy: ±1BPM or ±1% of the Measured Value (Larger Value) Power Consumption: Less Than 30mA Color: Black Product Size: Approx. 5.8 x 3.2 x 2.8 cm / 2.3 x 1.3 x 1.1 in Weight: Approx. 55g / 1.9oz Package List: 1 x Finger Pulse Meter (Battery Not Included) 1 x English User Manual 1 x Lanyard 1 x Plastic Lining
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