The MS-4 collar is the water resistant and lightweight collar for the Power Pet Door.  It will also work with the High Tech Pet Sound Barrier and Yard Barrier.

Engineered, assembled and tested in the USA.

MS-4 Collar Works With

• Power Pet Door PX-1 and PX-2
• Sound Barrier 
• Yard Barrier

Collar Features

• MS-4 Collar is water resistant
• MS means Micro-Sonic
• Collar takes user-replaceable batteries-INCLUDED!
• Collar batteries last up to 3-5 months
• Low battery light on collar
• Collar dimensions: 1 7/8" long x 1" wide x 3/8" deep 
• Collar Weight:  1.5 ounces with strap
• Fits neck sizes up to 24 "
• Strap measures 3/4" wide x 26" long
• 2 loop rings hold the collar in place

Box Includes

• One MS-4 Collar
• Collar battery (B3V1A 3 volt)
• One year warranty