Thanks David. 2 seconds would be a huge improvement for us.

Actually, we are considering just wiring everything and using one of the extra laptops as a dedicated Midmark EKG/spirometry computer. It is on a rolling cart and is always attached to both the EKG and the spirometry units. That way the rooms would be wired and we would have just one roaming computer for requiring the wireless connection.

Im not sure about what it actually checks. However, it does say to check it several times to get better accuracy so my guess is it only checks once.