background image

OB001 Optical Heart Rate Armband

Operation Guide

Please charge the sensor in the first use and when the battery is low (red flashing 
LED). Please make sure the charging contacts on the back of the sensor with that of 
the charging dock are clean and dry before charging to prevent any poor connection.

1

  To charge the sensor, align the charging contacts on the back of the sensor with 

that of the charging dock. See 

Figure A.

2

  Put the sensor into the charging dock as shown in 

Figure B.

3

  Connect the USB power port to your computer or plug directly into a USB wall 

charger.

4

  The green indicator will flash continuously when charging. Once the battery is 

fully charged, the green light will stop flashing and remain statically on.

5

  Take out the sensor from the charging dock by sliding up or down. See 

Figure C.

PART NAMES

HOW TO CHARGE

FEATURES

Dual mode technology

Compatible with sport watch, cycling computer, fitness equipment, and smartphone 
with Bluetooth® and ANT+; also works with most Fitness Apps via Bluetooth®. 

Storage function

This wearable device monitors your heart rates and the number of steps you take 
during exercise. The built-in memory can independently record and store heart rate 
data and SPM(steps per minutes); no need to bring your smartphone or wear your 
watch when exercising. After exercising, you can synchronize the data to 

Ala Connect

 

through Bluetooth® to review the training summary and analysis.

Lightweight and comfortable

The sensor and armband are less than 20 grams; can be worn on the forearm or 
upper arm.

USB charging dock

Armband

Sensor

LED indicator

Button

Charge contacts

Lock on

Lock on first

Slide up

Charging contacts

LED

Indicators

A

B

C

To ensure accurate step count measurements, 
wear the sensor on the inner forearm.

HOW TO WEAR

Slide both ends of the armband through the buckles at both ends of the sensor. 
Wear the sensor on the inside of forearm or upper arm. Please do not wear it on 
the wrist and avoid any tattoo and hair.
Adjust the tightness to make sure the sensor fits the arm.

Velcro

Fuzzy side facing the outside
Buckles

After synchronizing with the 

Ala Connect,

 the sensor can be automatically 

calibrated. To avoid errors in time correction, please synchronize immediately before 
the initial use and when it is fully charged after a battery drain.

1

  Scan QR Code or search for 

Ala Connect

 on Apple Store or Google Play and 

download. 

2

 

Press the button once

 with the white light on to synchronize and turn on sensor.

3

 Open 

Ala Connect

 and add device according to the instructions. User’s profile will 

be written into the sensor automatically once the device is successfully added and 
connected. Be sure to turn on Bluetooth® on your smartphone to synchronize. 

4

  Once the synchronization is completed, 

press the button

 to turn off.

5

  Wear the sensor and exercise.

6

  For recording, 

press and hold the button

 until the red light is on; to end the 

exercise mode, 

press and hold the button

 until the red light is on before it turns 

off (this action will also turn the sensor off ).

7

  To synchronize your training data with your device wirelessly, 

press the button

 for 

the white light and open both Bluetooth® and 

Ala Connect 

on your smartphone.

8

  The uploaded training data will be stored in the cloud.

Log in cloud.alatech.com.tw to check your activity report and results.

APP USE AND SENSOR PAIRING

System requirements of APP installation:
•  Support iOS 9 or later
•  Support Android 5.1 or later
•  Built-in Bluetooth 4.0 or later

* Also compatible with other apps, such as Wahoo fitness.

Slide down

The sensor only comes with one button; the operation of different uses is described 
as follows:

OPERATION

Charge

Button

Green

Red

When used as an independent training device

Light Indicate of heart rate

Synchronizing Data 

Note 3

Charging

Flash
Constant ON

Fully charged
Low battery 

Note 1

Turn on and Start Recording

Long press
Long press

Press once

Press once
Press once

Stop Recording and Turn off
Manual lap

Heart rate not detected
Heart rate detected 

Note 2

Turn on and Synchronizing
Stop Syncing and Turn off

•  The sensor is water-proofed. You can clean it with water; be sure to dry it with 

cloth immediately after washing it.

•  It is recommended to wash the armband with water (under 40°C). 

DO NOT

 use 

the brightener, soap or softener. 

DO NOT

 soak, iron, dry clean, bleach and twist.

HOW TO CLEAN

2PF2972100800XX, 2020/02 V3

Flash

Light up
Light up

Light up
Light up

Constant ON

White

Reviews: