Extech IR260 Compact IR Thermometer with 12 to 1 Distance Ratio is designed to measure temperatures from -4°F to 752°F (-20°C to 400°C) with ±2 accuracy. The Extech IR260 features a laser guide for easy aiming, adjustable emissivity, MIN/MAX function, programmable high/low alarms, a backlit display, and more. The Extech IR260 is great for ventilation, checking bearings, transformers, bad electrical connections, and more.