What is a good do-it-yourself home alarm system?

Highly reviewed do-it-yourself home security systems include the Canary All-in-One Home Security Device, the Withings Home camera system and the Netgear Arlo. These systems have no contracts or monthly fees.

All of the devices are less expensive than professional security services. Advantages of do-it-yourself security systems are that users do not have to pay for false alarms, and the police won't come to the homeowner's door. A disadvantage of do-it-yourself security systems is that the devices often rely on the quality of the homeowners' Internet connections. Some systems are not suitable for larger homes unless they come with range expanders.