Final answer:
The service fee for Smart smoke and carbon monoxide detectors varies depending on the brand and model, generally ranging from $20 to $100.
Step-by-step explanation:
The service fee for Smart smoke and carbon monoxide detectors depends on the specific brand and model. Generally, these detectors are priced between $20 to $100. However, it is important to note that the service fee is a one-time cost and does not typically need to be renewed or paid regularly.
Some examples of popular Smart smoke and carbon monoxide detector brands include Nest Protect, First Alert, and Kidde. These brands offer various features such as smartphone notifications, voice alerts, and battery backup, which can affect the price of the detector.
When considering a Smart smoke and carbon monoxide detector, it is important to prioritize safety over cost. Look for detectors that meet industry standards and have reliable performance to ensure the safety of your home and loved ones.