Simply having a smoke detector does not mean it will work when you need it to. Batteries in those spoke detectors should be replaced regularly. With your Digs smoke detector subscription, we will replace the smoke detector batteries in your entire house every 6 months. No more wandering the house at 3am, trying to isolate the sound of that robotic chirping noise, to determine which smoke detector needs to have its battery replaced. All of this, only to discover you are out of 9V batteries and have to deal with the noise until the morning. At Digs, we have got you covered!