Features:  3-in-1 Distance Measuring Tool: it combined with a 5m traditional measuring tape, digital measure tape, and 30m/40m infrared distance meter in a single unit.  Infrared Measurer: the measure range up to 40m, installed with full functions of area, volume, pythagoras 2&3 points measurement, and 20 sets of memories could be read over.  Digital Tape Measurer: precise figures are fast displayed on screen when the measure tape are pulled out. Area and volume functions are workable under the digital display mode. Besides, the tape lock prevents any possible harm to ensure safety operation.  LCD Display: 2.0-inch black screen with backlight, the measured data are easily to read even in dark environment.  Lithium Battery Power Supply: built-in the rechargeable battery makes it more economical and environmental.  Compact Pocket Size: square design in horizontal lines structure guarantees precise results. Smooth surface and round edges to enhance the comfortable hand feeling.    Specifications:  Measurement Range: 30m / 40m (Optional)  Material: ABS  IR MEASURER:  Range: 30m(98ft) / 40m(131ft) (Optional)  Measure Accuracy: ±(3.0mm+5x10^(-5)D)  Unit: m/ft/in/'"  Reference: Front/Rear  IR Class: Class 2  IR Type: 630-670nm  Measurement: Single Measurement, area measurement, volume measurement, pythagoras measurement  LCD: 2" black screen  History: 20 sets  Device off: 180s  IR off: 30s  Backlight off: 10s  Battery: 1 * 3.7V 300mAh rechargeable lithium battery  Working Temperature: 0~40℃  Storage Temperature: -10~60℃  USB Port: Micro USB  TAPE MEASURER:  Length: 5m / 16.4ft  Tape Accuracy: ±1.5mm  Digital Accuracy: ±2mm  Tape Width: 19mm  Horizontal Stand-out: ≥1.8m  Measurement: Area measurement, volume measurement  Tape Unit: ft/in  Item Size: 82 * 82 * 44mm / 3.23 * 3.23 * 1.73in  Item Weight: 270g / 9.52oz  Package Weight: 391g / 13.79oz  Package Size: 16.3 * 11.6 * 5.2cm / 6.42 * 4.57 * 2.05in    Packing List:  1 * Measurer