Test your Sentrol glass break detector with ease using the 5709C-W acoustic sensor tester. This hand-held device is compatible with Sentrol brand detectors and specifically designed for testing glass break detectors. Ensure your home surveillance system is functioning properly by regularly testing your detectors with this convenient tool. The 5709C-W makes it easy to verify the sensitivity and accuracy of your glass break detectors, giving you peace of mind that your home is protected.