Upon lighting by pressing the trigger, the temperature is indicated. Be careful not to measure reflective surfaces (metal, aluminum, etc) but you can open the door of the positive cold room and directly read the temperature on a product. For a restaurant that has to control the temperature of the products every day, the product is great and fast, the laser is a red point that allows to check carefully what is intended. It measures the temperature to 2 or 3 meters away. Perfect for checking the delivery of frozen temperature or cold room products or offered for sale in the counter or rays. Be careful not to measure the surface of products and good heart. Works with a 9V battery by opening the black handle. The texture is soft rubber and hard at once, it's solid. It really changes your life in relation to a probe thermometer that must physically push in products and wait for the temperature to stabilize. Here it is instantaneous
