The Fluke TiR27 Thermal Imager is designed for specifically for professional building applications. This Thermal Imager boasts 240x180 infrared resolutions, on-camera blended infrared and visible images, a high definition display, and a 2GB SD memory card for storing voice annotations or images. The Fluke TiR27 can measure a temperature range of -4 ºF to +302 ºF and is drop tested to withstand a 2m drop. Optional telephoto available. Thermal sensitivity ≤0.045°C at 30°C target temp, 45mK. Weighs only 2.3 lbs.