Heddolf P294-1KB 318MHz 9 Dip Switch Receiver Allstar Allister 9931MT RB709U-NB Heddolf P294-1KB By Keystone is a 1-Channel 12/24 Volt 5-Wire F-Connector Antenna Trinary (+, 0, -) Code Switch Gate, Garage Door Opener Radio Receiver Compatible With Allstar, Allister, Pulsar, GTO, Mighty Mule Gate And Garage Door remotes On 318MHz. Replaces The P294-1KA Product Description The new design P294-1KB replaces the Heddolf P294-K by Keystone is a compact single channel 9 trinary (+, 0, -) code switch 12 or 24 volt AC or DC 5-wire type gate or garage door opener radio receiver with a wire antenna as well as an F-connector for adding a remote antenna that is directly compatible with the Allstar, Allister, Pulsar, GTO and Mighty Mule brand of radio controls that operate on 318MHz frequency. This Heddolf P294-1KB radio receiver has an isolated form "C" N/O, N/C relay contact closure that is selectable for either a 0.5 second pulse or maintained with remote control signal output that is selected by an internal slide switch. The Heddolf P294-1KB radio receiver includes a standard wire type antenna and also has a standard "F" connector for use with a remote antenna (sold separately) allowing the antenna to be remotely located for maximum range. This is the same radio receiver as the GTO, Mighty Mule RB709 radio receiver. The Heddolf P294-1KB is compatible with the following remote controls to control one device: Allstar, Allister, Pulsar: 931, 9931, 832, 8832, 833, 8833, 9931MT. GTO, Mighty Mule: RB741, RB742, RB743, RB744 Carper: CX-318-1 Heddolf: P219-1KA, P219-2KA, P220-1KA, P220-1KB, P220-2KA, P220-2KB, P220-3KA, P220-3KB Not all compatible models may be listed Product Features: Controls up to one garage door or gate opener Operates on 12 or 12 Volt AC or DC Form "C" N/O and N/C isolated contact Selectable 0.5 second pulse or maintained with signal contact closure Wire lead antenna and F-Connector for optional remote antenna (not included) One-Year manufactures warranty Product Specifications: Power: 12 or 12 Volt (switch selectable) AC or DC Frequency: 318MHz Codes: 19,638 set by 9 three position (+, 0, -) code switches Dimensions: 4.50 x 3.0 x 1.25 inches (excluding mounting tabs and F-connector)