Which one is NOT a disadvantage of the IR senor?
A. Expensive
B. Difficult to install
C. Not as accurate
D. Affected by dirt
E. None of the above
Answer: B
Which one is NOT a disadvantage of the IR senor?
A. Expensive
B. Difficult to install
C. Not as accurate
D. Affected by dirt
E. None of the above
Answer: B