Basic Setting & Operation Tip for Data Setting : 1. Mark the corresponding spot on the floor as the second point. Next, roll the wheel forward until the valve stem is closest to the ground once again.

How do you measure the wheel circumference yourself? Roll the wheel until the valve stem is closest to the ground and mark the corresponding spot on the floor as the first point.

Wheel Circumference Measurement To set the wheel circumference before riding, you should measure the wheel circumference by yourself or just refer to the Wheel Circumference Table as shown below. 2.Buttons for entering or quitting Altitude Calibration Mode: A+B (3's) 3.Buttons for quickly resetting the current altitude to zero: A+B (1's) Buttons A+B: 1. In Altitude Calibration Mode Tips: 1.The buttons you'll use in Altitude Calibration Mode: A, B.

Button D: Press the D button to switch to Bike 1 or Bike 2.

: In Altitude Calibration Mode Altitude Calibration Mode.

How do you enter Data Setting Mode after initiating the computer? After initiating the computer by pressing the A, B, C buttons at the same time for 3 seconds, press any button to quit auto-testing display, and then select units. 2.In Data Setting Mode, press the C button to exit and return to General Mode. In General Mode, press the C button to enter Data Setting Mode. The following text lets you know how to use the buttons to operate the computer step by step. In this section, you'll learn the function of each button in each mode. Overview of Button Operation This computer includes three major display modes as shown below: Data Setting Mode, General Mode, and Altitude Calibration Mode.

The following is the General Mode Display during riding for reference.

Push buttons A, B, C simultaneously for 3 seconds, and you'll see the auto-testing display. Before normal operation, initiate the main unit and select units as stated below: 1-1.

: Using Your Computer Using Your Computer 1.Main Unit Setup 1.

You should always keep the hole clean to avoid incorrect measurement and must not poke a needle or any pointed article into it to avoid damage.

There is a highly sensitive pressure sensor inside each Echo-a1 or Echo-a2 cycle computer, and there is a hole at the bottom of each main unit for measuring the pressure.

Please read this manual carefully before using the device to get familiar with the operation logic. The easy operation of your new Echo-a1 or Echo-a2 will let you enjoy much fun from riding.

: Introduction Introduction Congratulations on having chosen the cycle computer with altimeter functions from ECHOWELL.

SPEED TRANSMITTER SET Speed transmitter 3V battery (CR2032) Transmitter rubber pad Cable ties Magnet set O-ring 4. BRACKET SET Bracket for handlebar or stem Bracket base Twin adhesive tape Cable ties 3. MAIN UNIT Main unit 3V battery (CR2032) 2.

: Package Contents Package Contents 1.

: Table Of Contents Contents Package Contents.

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