With Chest Strap
1 Take the accompanying chest strap and remove its packing.
2. Install the ER1 main unit to the strap, as shown below.
3. Moisten the electrode on the strap contacted the body with
clean water.
4. Adjust the chest strap length to suit your body.
5. Put on the strap with the "R" symbol at the right side, and then
position the strap under the breast, as shown below.
6