Just aim and push the button. The Hearing Alarm tells you whether exposure is at:
safe levels (green light)
high levels (yellow light, approximately 85 dB)
or just plain dangerous (red light, approximately 110 dB).
A common cause of hearing loss is exposure to loud noise. The "HEARING ALARM" is designed to identify noise levels in your environment that may damage your hearing. Hearing loss is a permanent disability that often goes unrecognized. Continued exposure to loud noise can create communication problems that may have serious effect on your daily life, social activities and potential personal achievements.
Strong build quality to travel with. Sizes: 9.5 x 7 x 2.5 cm 9V battery included.
Please Note: This device is for guidance purposes only and is not for use as a measuring instrument.