You may be interested in our other listings on eBay.Model TA4011-10 Integrator. (S/N L8836 002-001A) To convert any instrumentation DC Voltage or DC Current signal to a proportional pulse rate. With output Frequency 0/200PPM, and Input 4/20 MADC.
TA 4552-1 Power Supply (S/N L8836 001-001B) With an output of 24VDC @ 200MA and input 115VAC 60HZ.
See Pictures. Item does not look used and is in excellent shape.