CB-1001 MINI ULTRASONIC DISTANCE METER METER/FEET EXCHANGE MEASURING RANGE: 2-45 FEET WITH LASER POINT WORKING TEMPERATURE: 0°~ 40°C SPECIFICATION Range:0.76meter to 13.5meters(2.5 feet to 50 feet) Display:Liquid Crystal Accuracy:±(1%+1digit)at 77°F(25°C) Resolution:0.1 feet (0.03m) Readout:Linear distance error"E" Operating Temperature:40°F(4°C)to 100°F(38°C) ATC:Automatic Temperature Compensation Weight:100g incl.Battery