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Whether you decide to go with a DIY system or opt for a professionally installed system, you'll have to pay a monthly
or annual fee if you require monitoring, and in some cases, you'll be hit with a monthly fee to pay off the cost of hardware components. With most DIY systems, such as the SimpliSafe Home Security Kit, the Ring Alarm Security Kit, and the Nest Secure, you purchase the hardware outright and can avoid any monthly fees if you decide to self monitor. If you add monitoring, fees will vary: SimpliSafe charges $14. 99 per month for its no contract monitoring service
, while Nest charges $29 per month. If you commit to a three year contract, the price of the Nest service drops to $19 per month. Ring's Protect Plus plan goes for $10 per month and doesn't require a contract.