OS303-series essential infrared thermometer boasts 12:1 field of view, -32 to 530°C temperature range and ±2% accuracy above 0°C. This essential level device is great for basic non-contact measurement of surfaces that are far away and very high temperatures. This unit has a fixed emissivity at 0.95 perfect for many applications. The small compact size makes this unit easy to carry for all-day usage and fits comfortably in the users hand. Applications with a 0.95 emissivity include asbestos, asphalt, oil, rubber, concrete, copper, ceramic, paper and many more. The 12:1 field of view, or distance to spot ratio, allows for precise measurement even from a larger distance.