dBAlert - Personal Noise Activated Warning Unit

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According to industrial safety law, areas subject to hazardous noise must be clearly defined, and workers notified of the danger. In most industrial settings, the noise hazard will vary throughout the premises and employees are often mobile. This is precisely where the Castle dB Alert! Personal Noise Activated Warning Unit comes into play.
dBAlert! activates only when the noise exceeds a pre-set level, warning exposed workers that noise levels have become dangerous and to put on their ear-defenders. Perhaps more importantly for the employee, this means that they will also know when they can legally take them off!

Being of rugged construction, dBAlert is suitable for most industrial situations. It comes complete with a pocket clip and the membrane keypad means that integrity and simplicity of use are maintained.
dBAlert! also includes a vibrating alert , which gives the wearer the added warning of a mobile phone style vibrating alert to bring attention to the fact that dangerous noise levels have been exceeded.
dBAlert! is a self-contained unit housing its electronics in a tough case, and is easily set-up to company specific levels meaning it will be ready for action within moments of leaving the box.
The Ultra-bright warning LED is brilliantly lit when activated and is designed to catch the wearers attention by using their peripheral vision giving an easily noticed warning.

• Measuring Range: 75 dB to 103dB. Trip level selectable from 75dBA to 90dBA in 5dB steps
• Trip Time: 30 seconds
• Controls: Power on/off membrane keypad. Power on indicator
• Detector Characteristic: Averaging
• Frequency Weighting: A in accordance with IEC 61672-1:2002 Class 2
• Time Response: Slow response (1000 mS)
• Microphone: Built in Castle electret microphone
• Batteries: 2 x MN2400 (AAA) Alkaline or NiMH Re-chargeable Batteries
• Battery Life: Duracell ProCell Alkaline Batteries - Approx 85 hours
• Warning LED: 1 x Ultra-Bright LED, software controlled
• Vibrating Alert: Mobile phone style vibration motor for tactile warning (approx 150Hz). Simultaneous to LED warning.
• Dimensions: Overall - 95mm x 47mm (widest) x 24mm (without clip) or 29mm (with pocket clip)
• Weight: 70g (with batteries)

OPERATION - dbAlert Personal Noise Activated Warning Unit:
dBAlert is worn on a shirt or overall pocket with the microphone facing outwards. The microphone receives noise and passes it to the micro-processor, where it is compared to the preset trigger level which, if exceeded, starts the ultra-bright warning LED to flash. Once the noise in the area falls below the threshold for more than a preset time the LED is extinguished.

SETTING THE ACTIVATED NOISE LEVEL - dbAlert Personal Noise Activated Warning Unit:
The unit is factory calibrated to 85dBA and a series of internal switches enables the user to select the desired trigger level.