The Heat Spy 150 Series thermal-imaging camera from Wahl Instruments has a 160 by 120 detector for 19,200 individually calibrated pixels. Model Z features a 60 Hz frame rate while Model A has a 9 Hz rate for use in restricted countries. The images have a 25- by 19-degree field of view with a 3.2 megapixel CMOS image sensor for visible light images. Dual LED bulbs integrated above the lens act as headlights for clear, crisp visible light images even in low-light conditions. 800/421-2853; www.palmerwahl.com.