Package Content:1 x Black  Non-Contact IR Infrared LCD Digital Thermometer<br />Size:8.0 x 5.0x 2.35 cm<br />Weight: 45g<br />Color: Black<br />Display:3digit on LCD display<br />Temperature range: - 50C to 300C ( -58F - 572F )<br />Accuracy: 2% or 2C<br />Repeatability: 1% or 1C<br />Response Time : ?? 0.8 second<br />Emissivity : 0.95 as default (setting range 0.1-0.99)<br />Working environment:  10C to 40C<br />Relative humidity:10% -90 RH<br />Storage temperature: -10C to 40C<br />Power: 2pcs AAA batteries ( 1.5V / each ) ( Batteries are not included )<br />Distance Spot Ratio : 2 : 1<br />Recommend measuring distance : 20mm to 130mm<br />Resolution: 0.1C or 0.1F<br />Measurement Tips:<br />If surface of object is covered with frost、 dust or other materials.<br />Please clean surface to get accurate measure result.  If the surface of an object to be measured is highly reflective with very low emissivity value. Please apply masking tape or apply flat black paint to the surface to improve the accuracy.<br />Press button ? turn on the unit、  the meter will auto power off after 10 seconds without operation