1. Multi-function ultrasonic distance measurer with laser point. Perfect for realtors, builders, and anyone who needs a measurement or rooms area quickly. 2. Range: 0.55 - 18.288m (2-60ft) 3. Accuracy: 0.5% +1 digit (2-60ft) 4. Working frequency: 40 kHz 5. Working temperature: - 32 Degree F to 109.4 Degree F (0 Degree C - 43 Degree C) 6. Feet/meter switch 7. LCD with backlight 8. Automatic power off 9. Three memories 10. Area and volume calculation 11. Addition and subtraction functions 12. Memory clear function 13. Error confirmation 14. Powered by 1 x 6F22 9V battery (not included)
