amortizing. 1  transitive verb. 2  1 : to pay off (an obligation, such as a mortgage) gradually usually by periodic payments of principal and interest or by payments to a sinking fund amortize a loan. 3  2 : to gradually reduce or write off the cost or value of (something, such as an asset) amortize goodwill amortize machinery.
Expect to pay $30-$300 for a basic car alarm that has a siren attached to the vehicle's existing wiring system, one or two remote controls and a simple controller/brain; models at the higher end of this price range may have a back-up battery and/or more sensors than the lower-priced alarms, or a few features like a remote start or a starter ...
ADT Home Security Systems Sample Costs. 1  A basic ADT alarm system might cost around $100-$350 to install if you agree to a 36-month monitoring plan that about $35 per month. A system at this price might include 1 control panel, 3 door/window sensors, 1 motion detector, 1 built-in siren, and a keychain remote. ADT monthly monitoring fees start at $32.95 per month for basic security. Additional monitoring for smoke, fire, water, etc. cost extra. A package with 7-10 window/door sensors, 1 motion detector, 1 control panel, a siren, and more might cost around $500-$700 to install, plus monitoring fees.