STEP 2 — PREPARING YOUR SKIN
Soap, lotion, shampoo or conditioner might leave oily residue on the skin, preventing the sensor from sticking properly.
To improve adhesion, clean the skin with soap and water and allow the skin to dry (do not blow on it). Then clean the skin with alcohol wipes and allow the skin to air dry.
Moisture gets in the way of adhesion. Keep the skin dry prior to application.
Hair gets in between the skin and sensor adhesive. Check where you are intending to apply the sensor and choose the least hairy site.