Features: 4 types to select, easy to operate. Digital non-contact thermometer, safe to use. Quality material, fast- response, more accurate result. Widely applicable for food, baking, grill-, cooking, HVAC, engine, etc. 0.5 seconds fast- measuring, adjustable emissivity(EXCEPT model SK600A), LCD- color backlit display, convenient to use. Specifications: Material: Electronic Component, Aluminum Alloy- Resolution: 0.1℃ Distance Coefficient Ratio: 12:1 Backlit Color Display: YES Type: SK600A: Approx. 21x13.8x4.5cm/8.27x5.43x1.77in, 1x9V Batteries Needed(NOT Included), -50 to 380℃±3℃(Measurement Range-), Single Point(Laser-aiming), 0.95- Unadjustable(Emissivity) SK605A: Approx. 19x12.3x5cm/7.48x5.04x1.97in, 2xAAA Batteries Needed(NOT Included) -50 to 480℃±3℃(Measurement Range-), 12 Point(Laser-aiming), 0.1-1 Adjustable(Emissivity) SK605B: Approx. 19x12.3x5cm/7.48x5.04x1.97in, 2xAAA Batteries Needed(NOT Included) -50 to 680℃±3℃(Measurement Range-), 12 Point(Laser-aiming), 0.1-1 Adjustable(Emissivity) SK605C: Approx. 19x12.3x5cm/7.48x5.04x1.97in, 2xAAA Batteries Needed(NOT Included) -50 to 880℃±3℃(Measurement Range-), 12 Point(Laser-aiming), 0.1-1 Adjustable(Emissivity) Package Includes: 1x Thermometer note: Do not measure through a transparent-surface, such as glass, otherwise it is the temperature of a transparent- substance. Do not point the laser at the eye or indirectly through reflection, If the ambient- temperature changes greatly or suddenly, measure 30 minutes later.