The Renosance 140: $3,750
Large 7″ touch screeen display makes it easy to see at a glance.
Connect to pc via bluetooth, so it’s always connected even on the go.
On board data base, so you can enter patient names and test multiple patients per room. Comes with a 3 year warranty.
Adaptive: This unit can be upgraded to include Tympanometry and / or audiometery
Service: Very responsive Tech Support

The Maico Ero-Scan:  $3,795
Small non-responsive 2″ display
Needs to be returned to pc and connected via usb to print.
No data base or key pad, So you must  return to the pc after every patient to print .
1 year warranty
Can not be upgraded to include tympanometry or audiometry
Average Tech Support
The Welch Allyn 39500:  $4,366
The Welch Allyn is pretty much the same unit as the Maico just with a higher price tag and worse service.There are no major differences between the two unit because they are pretty much the
same unit with different decals on the face. But trying to reach Welch Allyn customer service is like trying to reach the president of the United State. It just is not going to happen.
There are a couple of more companies out there but these are the big 3. The others are more focused on the ENT market and are going to be overkill for the pediatrician or family practitioner.
The earlier a hearing loss occurs in a child’s life, the more serious the effects on the child’s development. Similarly, the earlier the problem is identified and intervention begun, the less serious the ultimate impact.There are four major ways in which a hearing loss affects children:
WHAT YOU CAN DO
Start testing early. Recent research indicates that children identified with a hearing loss who begin services early may be able to develop language (spoken and/or signed) on a par with their hearing friends. If a hearing loss is detected, early family-centered intervention is recommended to promote language (speech and/or signed depending on family choices) and cognitive development.