https://www.guideir.com/products/thermalclip-on/tb-series?catids=172 TB420 Clip on Thermal Imaging Attachment The TB Series bridges the gap between precision and portability. The magnesium alloy housing decreases weight while increasing precision. The weights are over 20% lighter than those of other similar products. It is also more compact than our previous clip-on. Meanwhile, a Full-HD AMOLED display is capable, a wider viewing angle, and richer color. It is the ideal partner for relax hunting.