The manufacturer of the 785A UV/Vis Detector, Perkin Elmer is Perkin Elmer. The Perkin Elmer Absorbance Detector Model 785A is designed for stability, flexibility and reliability for all your laboratory needs. Featuring a digital display, the 785A provides absorbance, wave, range, auto zero, time, lamp, and stop/start. The back panel features A & B serial ports, remote/ test port, computer, recorder and relay connections.