RIDGID 40978 CA-100 Micro Circuit Board. Ridgid has large lineup of compact handheld inspection cameras. These Cameras provide users with the ability to easily find cracks and breaks in small, hard to reach areas. These Cameras feature pistol-grip designs, large screens, aluminum camera heads and with bright LEDs for optimized diagnostics. The RIDGID 40978 CA-100 Micro Circuit Board is a genuine replacement part manufactured specifically for CA-100 Inspection Cameras. This RIDGID 40978 CA-100 Micro Circuit Board is fully covered under RIDGID's 3-year limited performance warranty and lifetime warranty to be free of material defects.