Dahua Technology DHI-ARM808-RS, Control module, Universal, Blue, 2.44" (62 mm), 3.54" (90 mm), 0.496" (12.6 mm) Dahua Technology DHI-ARM808-RS. Product type: Control module, Device type: Universal, Product color: Blue. Width: 2.44" (62 mm), Depth: 3.54" (90 mm), Height: 0.496" (12.6 mm)