100 items you can sell to companies that provide security system installation services:
Surveillance cameras, DVR systems, NVR systems, video doorbells, access control panels, keycard readers, biometric scanners, motion sensors, glass break sensors, infrared sensors, window sensors, door sensors, alarm sirens, strobe lights, control keypads, wireless transmitters, wireless receivers, network switches, POE injectors, security cables, power supplies, backup batteries, UPS systems, tamper-resistant screws, cable management boxes, junction boxes, conduits, cable ties, mounting brackets, camera housings, weatherproof covers, dome camera enclosures, bullet camera mounts, PTZ camera mounts, surge protectors, lightning arrestors, Ethernet cables, coaxial cables, fiber optic cables, cable testers, HDMI cables, BNC connectors, baluns, video amplifiers, signal boosters, infrared illuminators, lens cleaners, hard drives, SSDs, microSD cards, network routers, network firewalls, wireless access points, cable crimping tools, soldering tools, cable strippers, screwdrivers, pliers, wire cutters, voltage testers, multimeters, power drills, ladders, safety harnesses, gloves, protective eyewear, labels, security decals, warning signs, camera calibration tools, cable organizers, wall plates, keypads, fingerprint readers, RFID tags, smart locks, intercom systems, call stations, vandal-resistant cameras, thermal cameras, ANPR cameras, explosion-proof cameras, microphones, speakers, audio amplifiers, video intercom panels, remote control units, signal converters, video balancers, camera testers, programming tools, system monitoring software, licensing keys, software updates, mobile app integration tools, training materials, user manuals, installation guides, marketing materials, customer support kits.