Menu
Your Cart

50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement

50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
50pcs KY-039 Finger Detection Heartbeat Sensor Module Finger Detect Measurement
$26.99
Ex Tax: $26.99
  • Stock: In Stock
  • Model: EB0046728
  • SKU: EB0046728
 
This project uses bright infrared (IR) LED and a phototransistor to detect the pulse of the finger, a red LED flashes with each pulse.
Pulse monitor works as follows: The LED is the light side of the finger, and phototransistor on the other side of the finger, phototransistor used to obtain the flux emitted, when the blood pressure pulse by the finger when the resistance of the phototransistor will be slight changed.
We chose a very high resistance resistor R1, because most of the light through the finger is absorbed, it is desirable phototransistor sensitive enough. Resistance can be selected by experiment to get the best results.
The most important is to keep the shield stray light into the phototransistor. For home lighting that is particularly important because the lights at home mostly based 50HZ or 60HZ fluctuate, so faint heartbeat will add considerable noise.
 
Package includes:
 
50 x Finger Measuring Heartbeat Sensor Module



50pcs-KY-039-Finger-Detection-Heartbeat-Sensor-Module-Finger-Detect-Measurement-1606724

50pcs-KY-039-Finger-Detection-Heartbeat-Sensor-Module-Finger-Detect-Measurement-1606724

50pcs-KY-039-Finger-Detection-Heartbeat-Sensor-Module-Finger-Detect-Measurement-1606724

50pcs-KY-039-Finger-Detection-Heartbeat-Sensor-Module-Finger-Detect-Measurement-1606724

50pcs-KY-039-Finger-Detection-Heartbeat-Sensor-Module-Finger-Detect-Measurement-1606724

50pcs-KY-039-Finger-Detection-Heartbeat-Sensor-Module-Finger-Detect-Measurement-1606724

Write a review

Note: HTML is not translated!
Bad Good

Shipping Time


After you successfully placed an order at RenhotecIC.com, you will receive a confirmation email with your invoice. Once your order is shipped, you will be emailed with the tracking information of your package. Also, you can choose your preferred shipping method during the checkout process. Kindly advise: please select DHL/FedEx if you need our product urgently.

The timeline of the whole shipping process is shown below:

img

The total delivery time is calculated from the time your order is successfully placed to the time received. Total delivery time is broken down into processing time and shipping time.

Processing time: The time it takes to prepare your item(s), includes preparing your items, performing quality inspections, and packaging for shipment. Normally, the processing time is 1-3 days (Only include Monday to Saturday ) after getting your order.

Shipping time: The time for your item(s) to travel from our warehouse to your destination. The shipping time depends on the shipping method you chose. Please refer to the shipping rate section for details. 


Shipping Rates


You could choose the shipping method based on your preference during checkout, different shipping methods will apply different rates and shipping times. Please check the following chart for detail:


Shipping MethodShipping RatesShipping Times
Flat Shipping (Promotion)
$10About 5-30 Working Days to Worldwide (Only include Monday to Saturday )

Standard Express(0.5KG starting price listed)

Based On WeightsAbout 5-15 Working Days to Worldwide (Only include Monday to Saturday )

Priority Express (0.5KG starting price listed)

Based On WeightsAbout 3-7 Working Days to Worldwide (Only include Monday to Saturday )

In addition, the transit time depends on where you're located, the shipping method you choose, and where your package comes from. We will keep you informed of any problems here to help you get your order as soon as possible. 

If you want to know more information, please contact the customer service by contact form or sales@renhotecic.com. We will settle your problem as soon as possible. Enjoy shopping!