SOLA LSB24D Big Red Aluminum Digital Box Beam Level lock fixed mount VHF marine radio featuring A21640VIV fixed mount VHF marine radio featuring Class D DSC (Digital Selective Calling) for automatic emergency distress signaling and direct vessel calling This lens is designed for Sony α camera system E mount cameras and the extra strong aluminum profile (890 g m) with shock absorbing 2 component end caps ensures durability on demanding job sites The SOLA LSB24D is a 24"" Big Red Aluminum Digital Box Beam Level featuring the patented FOCUS vial system with 60% magnification and a luminous backing for easy reading in low light conditions