You need to apply gel to the probe, do not apply glue that will stick when looking for the best position for testing, otherwise it will stick and cannot be removed
You need to apply glue to the probe. When looking for the best position for testing, do not apply glue that will stick, otherwise it will stick and cannot be removed<br>
You need to coat the probe with colloid, and don't coat it with sticky glue when looking for the best position for testing, otherwise it will stick and cannot be removed.