DNT Optics HOUND H635R 640×512 Thermal Imaging Monocular | 35mm LRFThe DNT Optics HOUND H635R is the thermal monocular that hunters who've used Pulsar Axion, AGM Taipan, and FLIR Scout wish they'd bought first. At under 11 ounces with a built in laser rangefinder and ballistic calculator, this 640512 handheld thermal imaging monocular puts serious detection power in your palm, and it costs a fraction of what the big names charge for the same sensor class. Why the HOUND H635R Is the Best 640 Core Thermal Monocular