MLR Retrofit Compatibility with 1000 Series PHI Devices May 05, 2026 15:26 Updated AnswerThe MLR cannot retrofit with the 1000 series PHI devices. Applies To MLR Related to MLR Exit Device Related articles MLR Retrofit Compatibility by Device Motorized Latch Retraction, MLR, Wiring Instruction and Specifications 9600/F9600 Narrow Stile Concealed Verticle Rod Exit Devices Precision 2100 & 2400 Series Rim Exit Devices 9300/F9300 Wide Stile RIM Exit Devices