Omega Engineering, Inc ACC-PS4A 3 Axis Accelerometer Power Supply .05Hz-100kHz OMEGA?s model ACC-PS3 is an ac powered, single-channel, high performance accelerometer power supply. This line-powered supply features low noise performance while still being low in cost. It has a rugged aluminum housing with four easily accessible mounting holes on 4.75 x 1.75" (121 x 44 mm) centers. OMEGA?s Model ACC-PS4 is an ac powered, triaxial, high performance accelerometer power supply for use with the ACC301 triaxial accelerometer. The ACC-PS4 will power the triaxial accelerometer and output the signal from all three axes. This line-powered supply features low noise and high performance while still being low in cost. It has a rugged aluminum housing with four easily accessible mounting holes on 4.75 x 1.75" (121 x 44 mm) centers. We take our reputation seriously, we buy and sell online, so we understand the value of trust! If you are unsatisfied with your order, please contact us and we will work with you to resolve it to your satisfaction! Thanks for looking at our listing and supporting our small family business! shelf 49 (box 1) NT