TASI TA511B 70m Laser Handheld Distance Measuring Room Infrared Measuring Instrument 1. Distance measurement range: 0.05 - 50m for TA511A, 0.05 - 70m for TA511B, 0.05 - 100m for TA511C 2. Distance measurement accuracy: about 2mm+d 110000 3. Laser type level: wavelength 630 to 670mm, output power less than 1mW, class 2 laser 4. Automatically cut off the laser: 20 seconds (single measurement) 5. Automatic shutdown: 150 seconds 6. Maximum battery life: 40008000 times (carbonalkaline battery) 7. Storage temperature: -20 - 60 degrees Celsius 8. Storage humidity: 20% - 80%RH 9. Working temperature: 0 - 40 degrees Celsius 10. Power supply: 2 x 1.5v AAA batteries (not included) 11. Weight: about 81g 12. Size: about 10.8 x 5 x 2.5cm Features: 1. The high-precision leveling bubble can make the body in a horizontal state and make the measurement more accurate 2. Select the area or volume measurement mode, measure the length, width and height respectively, and automatically calculate the area or volume 3. In the waiting measurement mode, lightly press or long press the READ key to enter the single or continuous measurement state 4. Select the Pythagorean measurement mode, measure the length of the two hypotenuses respectively, and automatically calculate the vertical height 5. Large optical lens, high-sensitivity focusing lens, effectively filters stray light, and optical compensation is significantly improved 6. Data storage, in the measurement mode, when the current data is valid, it will be automatically stored in the memory, and 99 sets of data can be recorded and stored Function: - Self calibration - Sound prompt - Data storage (99 records) - Continuous measuring function - Area and volume measurement - Pythagorean measurement function - Add and subtract measurement function - Max Min Mode Package list: - Host x 1 - Cloth bag x 1 - Instructions x 1