Deeper PRO and PRO+ models can scan up to 80 meters (260 ft) of depth.
Deeper Start models scan up to 50 meters (165 ft)
Deeper CHIRP+ model scans up to 100 meters (330 ft) of depth.
Deeper will show error message "too shallow or too deep" if the actual depth exceeds the maximum scanning depth of the sonar. For example, Deeper PRO/PRO+ will not scan in places that are factually 90 meters (295 ft) deep.