EF - An "alarm system contractor I" means an alarm system contractor whose business includes all types of alarm systems for all purposes.
In general an "alarm system contractor" means a person whose business includes the execution of contracts requiring the experience and skill to lay out, fabricate, install, maintain, alter, repair, monitor, inspect, replace, or service any electrical device, signaling device, or combination of electrical devices used to signal or detect a burglary, fire, robbery, or medical emergency.