Liberty Mountain Sb-400 Altimeter
Here's what other sites are saying:
The same working features as the SB-500. This model features a mounting plate to allow you to install it in your vehicle. The retaining ring on this unit will accept a lanyard for use away from the vehicle. The hole in each corner of the backplate will accept mounting screws, but using Velcro will allow for less permanent attachment and greater use of the altimeter.
- Altrec Outdoors