In addition to respective frame rates of 9 Hz (for use in restricted countries) and 60 Hz, Bluetooth®-enabled Heat Spy a150 and z150 feature 160 x 120 detector for 19,200 individually calibrated pixels with thermal sensitivity of 0.05°C @ 30°C. Features also include 25° x 19° FoV with 3.2 MP CMOS image sensor; 4 viewing modes; 3.6 in., 640 x 480 touchscreen LCD; and ergonomic, handheld housing. Laser aiming allows precision hotspot pinpointing, and 2 LED bulbs above lens for low-light use.