How to connect the Quad Lock Bluetooth Smart Heart Rate Monitor

Below are a few instructions to help guide you through connecting your bluetooth heart rate monitor to your smartphone. You will need a smartphone which has BLE capability which include iPhone 4S and later and all Android phones with Android OS 4.3 or later which supports BLE. Devices will not connect if you do not have these prerequisites. 

Lets begin. You will need the following

1) Quad Lock Bluetooth HRM

2) An iPhone 4S or later or an Android phone running Android Os 4.3 or later which supports Bluetooth Smart also known as Bluetooth LE 4.0

3) An app which supports BLE Heart Rate Monitors such as Strava, MapMyRun, MapMyRide, Roadbike etc 

Step 1. Make sure Bluetooth is active on your phone. The HRM is a BLE Smart device it does not pair or connect to your phone from the Bluetooth settings. You connect to the sensor via an App. 

Step 2. Moisten the sensor pads on the inside of the heart rate strap where they make contact with your skin. Put the heart rate strap on, with the heart rate transmitter pod resting just below your sternum. Ladies, this should rest just below a sports bra.  

Step 3. Open your selected app and go to the sensor settings (varies for each app). Each App is different so if you have trouble finding the App settings please contact the App Developer directly. You must be wearing your HRM for the App to detect the sensor. 

Step 4. Select your Heart Rate Monitor to connect. 

Step 5. Once connected the App will now display or record your heart rate. 

If you are having trouble connecting to the sensor try replacing the battery. 


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    Augustine Gonzales

    my iphone 7 plus is not picking it up on bluetooth what do i do for it to pick it up ?

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    Hey Augustine, the HRM is low energy Bluetooth so you connect it through an App not through the Bluetooth settings. If that doesn't work try wetting the sensor pads before using it to improve the signal. If that doesn't work I would replace the battery as they only last for about 12 months.