IMP Modules Default sorting Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Showing all 4 results 3595-1C1 – 20 Channel Analogue Reed Relay IMP Replacement of 3595-1C IMP 3595-1Q1 – 20 Channel Analogue Reed Relay IMP Replacement of 3595-1H IMP IMP Modules Repairs and Calibration New & Used IMP Modules