The Pro3000™ unfiltered probe, for use on inactive networks, features a loud speaker to hear tone clearly through walls, enclosures and in loud environments. The recessed on/off button helps prevent the probe from accidently being turned on when stored.
| User interface | ON/OFF push button Volume dial Replaceable tip 3.5 mm earphone jack |
| Battery | 9V alkaline |
| Temperature | Operating: -20° C to 60° C, Storage: -40° C to 70° C |
| Case dimensions | 9.8 in. x 1.6 in. x 1.3 in. (24.9 cm x 4.1 cm x 3.3 cm) |
