Use your Android as a remote audio surveillance device. This program uses the built-in microphone to detect noise in the surrounding area. If it detects noise it alerts you by making a call or sending a text message to another cell phone. This app includes: A Sound Detector which calls or text you with customizable sensitivity.
Download the .apk setup package of Sound Detector 1.1.3 that is provided for free and read users' reviews on Droid Informer. The file size is 605 KB and the app is developed for Android 2.1 and higher. The antivirus report shows that this application is completely safe for usage. MVA is the developer of Sound Detector which can be found in the Tools category.
The app was downloaded and set up by over 100K users and its most recent stable update was on Mar 18, 2011. This application is not recommended for users under the age of 3, it has been rated 3.9 on Google Play. There are advertisements in Sound Detector.