Respond to daily requests to replace building fixtures.
Inspects, repairs, and replaces electrical protective-signaling systems, such as burglar alarms: Examines signaling installation to ensure sound connections and unbroken insulation. Tests circuits, following wiring specifications, using electrical testing devices, such as ohmmeter or voltmeter. Tightens loose connections and disconnects and replaces defective parts and wiring, using electrician’s handtools. Adjusts controls to test operation of signaling units on subscriber premises and transmission of signals to central station and police and fire departments. Recommends new installation or modification of existing equipment to meet subscriber needs. May install equipment [PROTECTIVE-SIGNAL INSTALLER 822.361-018]. Usually is required to possess identification card issued by local authorities.