How Many Decibels Does a Honeywell 702 Siren Output?
The 702 siren emits a 118 dB sound when provided 12 Volts DC. This is roughly equivalent to the noise level experienced on the front row of a rock concert. Decibel ratings are logarithmic, so each 10 dB increase in intensity doubles the noise level, meaning 40 dB is twice as loud as 30 dB.
|
Noise Source |
Decibel Level |
Effect |
|
Jet take-off (25 meters) |
150 |
Possible Eardrum Rupture |
|
Aircraft Carrier Deck |
140 |
|
|
Thunderclap, chain saw, Oxygen torch |
120 |
Painful, 32 times as loud as 70 dB |
|
Steel mill, Auto horn at 1 meter, Turbo-fan aircraft at takeoff power at 200 feet (118 dB), Riveting machine (110 dB), Live rock music (108 - 114 dB) |
108 - 118 |
110 dB is the average human pain threshold. 120 dB is 16 times as loud as 70 dB |
|
Jet take-off (at 305 meters), Use of outboard motor, power lawn mower, jackhammer, |
100 |
8 times as loud as 70 dB, serious damage possible at 8 hours of exposure |
|
Garbage disposal, Dishwasher, Average factory, Freight train (at 15 meters) |
80 |
Twice as loud as 70 dB, damage possible at 8 hours of exposure |
|
Passenger car at 65 mph at 25 feet, Freeway at 50 feet from pavement edge, Radio or TV, Vacuum cleaner |
70 |
Our arbitrary base for comparison. Upper 70’s can be annoyingly loud for some |
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- Julia Ross