• Cond/TDS-Circuit Board for Analog Monitor Only
• The centers are 3.10" (78.7 mm) x 4.10" (104.1 mm).
• The circuit board has four (4) .175" (4.4 mm) holes for mounting.
• Total height of CB is 1.40" (36mm).

CB must be mounted on at least .250" (6.35 mm) standoffs to prevent shorting to metal chassis (standoffs user supplied). And it must be mounted in a clean and dry environment. Allow working room for inserting wires, testing and calibration. Indicator lights and switches require 1/4" (6.35mm) holes.