Table 2:

Validation data from Reed dB meter and sound and light sensors. Data presented as mean dB ± std.

Test	Reed dB meter	Sensor A	Sensor B
Location A	49.5 ± 0.170	49.3 ± 0.691	49.8 ± 0.767
Location B	59.5 ± 0.374	56.7 ± 0.713	59.4 ± 0.828
Location C	47.2 ± 0.245	43.8 ± 0.754	46.9 ± 0.832
250Hz Sine	67.9 ± 0.330	65.2 ± 0.315	54.9 ± 4.047
500Hz Sine	57.3 ± 0.386	65.9 ± 0.203	54.8 ± 2.569
1000Hz Sine	60.9 ± 1.372	53.2 ± 1.407	52.0 ± 0.626
2000Hz Sine	64.6 ± 1.080	66.5 ± 0.242	57.1 ± 4.220
4000Hz Sine	60.1 ± 3.065	61.5 ± 1.670	52.3 ± 0.969
8000Hz Sine	51.6 ± 1.147	56.7 ± 0.384	51.8 ± 1.320