Specs:  

• Dimensions: 11" long x 6" wide x 7"  tall
• Compatible with most electronic brake controllers  
• Meets or exceeds all Department of Transportation (DOT) regulations and federal braking requirements  Works with Ford and Dodge factory brake controllers - Not compatible with Chevrolet factory brake controllers  
• 2 Year limited warranty  
• The yellow wire must be attached to the breakaway unit for it to function when a breakaway occurs

Features:  

• Electric/Hydraulic Brake Actuator for Drum Brake Applications 1,000 psi suitable for drum brake applications
• Large reservoir capacity
• Solid state electronics
• Requires a 4-wire hookup  
• Wiring connections:  
• Yellow: cold side of breakaway switch; the wire that goes hot when a break occurs  
• Black: positive connection on breakaway switch; the wire that charges the breakaway battery  
• Blue: output from in-cab controller; the wire that provides power from your brake controller
• White: ground Requires a minimum 9 amp/hour breakaway kit