ECX Electronics MR57, Programmable Relay Board for International TerraStar AmbulanceCondition:* New stock, removed from installation before put into use.* As Pictured.Additional Notes:*Programmable Relay Board For The Specialty Vehicle Industry*Ambulances, Rescue Vehicles, Fire Trucks, and Mobile Command Centers* Contact Rating: 12 Volt DC / 20 Amps*Number of Relay Outputs: 55* Number of Solid State Outputs: 2* Number of Switch Controlled Signal Inputs: 46* Number of Analog (0-12 Volt DC) Signal Inputs: 2* Dimensions: 26.5″ (L)x 14.5″ (W) x 2.75″ (H)ECX ElectronicsMR57