Portable Thermal Imager Night Vision at Your Hand Handheld Thermal Surveillance Tool to Spot Unwanted Intruders in the Night. ► Compact and lightweight; ► Easy-to-use; ► Creating evidence for review. SYCH-3E is a compact and lightweight handheld thermal imager that will stand in good stead for border security professionals. SYCH-3E will add to agile detection and prevention of unwanted intruders from invading a restricted area. Internal electrical reticle provides for range and angle estimation...