Description The OTS-X is the latest in our successful OTS Thermal Imager System line. The OTS-X series is designed to be a versatile, compact, lightweight yet rugged thermal viewer that can be easily carried in a cargo pocket for Law enforcement and Sportsmen alike. The OTS-X is one of the most affordable thermal viewers on the market that includes a full 336x256. One of the most unique features is the ability to interchange the objective lens so you can have multiple magnifications based on your need or mission. Available in either 336x256 resolution with 4 different interchangeable lens types to choose from the OTS-X series is one of the most versatile viewers on the market.