Start an online car alarm supplier for installers

Independent garages, car audio and accessory shops, mobile installers and small dealerships that fit security units for vehicle owners.

You earn the margin between your trade price and your selling price on each unit. You can add small fees for expedited shipping or bundled kits. Repeat orders from regular installers matter most.

• Sales and relationship building
• Organizing orders and inventory
• Basic product knowledge of vehicle security
• Clear communication with trade customers

• Check your state's rules on a reseller permit or sales tax registration and how to collect resale certificates from business customers
• Product liability and general liability insurance, so check that your policy covers the products you sell
• Radio remotes and transmitters may need FCC authorization, so only buy from reputable sources and avoid gray-market or counterfeit units
• Check brand agreements for rules on territory, pricing and online sales
• Thin margins and returns, so confirm warranty and return terms with your suppliers first
• Check HOA or lease rules if you store stock at home, and check your city or county for any home occupation permit

Estimates put startup costs typically around $1,000 to $5,000, depending on how much stock you buy and how you set up your trade website. Many orders can ship straight from the supplier, so stock can stay light.

Estimates suggest monthly revenue typically around $1,500 to $7,500, depending on how many garages and installers you supply. Margins can be thin and returns happen, so confirm warranty and return terms with suppliers first.

Check your state's rules on a reseller permit or sales tax registration, and on collecting resale certificates. Radio remotes and transmitters may need FCC authorization, so avoid gray-market units. Also check your insurance and any home occupation permit.