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The NS117 Sound sensor is a simple low voltage analog sound pressure level (SPL) detector. It can easily integrate into an existing building control system. Connect the sensor output signal to an analog input of a controller, gateway, or data acquisition unit. The sound signal can be used for occupancy or intrusion detection. It could also be used to detect equipment malfunction. Moreover, it could be used to notify occupants of possible hearing harm and indicate when hearing protection is mandatory.
$129.00
The sensor can detect relative sound level of local space. The device is suitable for ceiling or wall mount applications. Place the sensor in a suitable location where local sound should be detected.
The sensitivity can be adjusted with a simple jumper position. This selection changes the gain of an analog amplifier. Choose a gain suitable for typical sound range. A high gain will detect lower levels. Whereas a lower gain will minimize noise in the signal.
The output mode can be changed from a continuously varying analog signal to a digital signal. The digital signal is produced by a comparator with a threshold at half scale (i.e. 5V) or quarter scale (i.e. 2.5V). Use the analog mode to continuously monitor levels. Or use the digital mode to trigger actuators at a specific event threshold.
Changing the sensitivity and choosing the digital output scale can adjust the event threshold. Setting sensitivity high and digital scale low will reduce the event threshold to a minimum and detect the smallest changes in levels. Whereas, setting sensitivity low and digital scale high will increase the threshold to a maximum and detect only the largest changes in levels.
| Weight | 0.1 lbs |
|---|---|
| Dimensions | 2.3 × 1.7 × 2.3 in |
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