ECHO - Echo Application Internal sounder with built in flash suitable for use with HKC control panels including the SW 1070, SW 20140, and all wired panels; Specification Internal Sounder ABS housing Dual piezo sounders Housing is tamper protected Variable volume control Finish Standards Downloads RF Echo (.pdf, 148 kB) Close DEC PCBR / DEC PCBB - Decoy Red Base or Blue Base OnlyThe Decoy Base is available with Blue or Red strobe lens.… ECHO FLASH RED or BLUE - Echo Flash Red or BlueInternal sounder with built in flash suitable for use wit… BP-Strobe - BP StrobeFlasher unit that fits into decoy external sirens.