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 Motorized Latch Retraction, MLR, Wiring Instruction and Specifications 9600/F9600 Narrow Stile Concealed Verticle Rod Exit Devices Precision 2100 & 2400 Series Rim Exit Devices MLR Retrofit Compatibility by Device 9300/F9300 Wide Stile RIM Exit Devices