For homeowners
Types of smoke alarms: which sensors fit the job?
It depends on the work: Photoelectric suits an alarm "less likely to nuisance alarm during cooking" (CPSC, 2016). The right choice depends on nuisance alarm during cooking.
| Type | Best for | Main advantages | Main drawbacks |
|---|---|---|---|
| Ionization | no official source names one | CPSC (2016): "Ionization detectors respond quickly to flaming fires that give off heat and hot gases with smaller (sub-micron) combustion particles …"; CPSC (2016), in a fast moving flaming fire: "An ionization smoke alarm may be seconds faster than a photoelectric smoke alarm" | CPSC (2016): "Do not install an ionization smoke alarm in or near the kitchen because it is more likely to nuisance alarm during cooking." |
| Photoelectric | an alarm "less likely to nuisance alarm during cooking" (CPSC, 2016) | CPSC (2016): "… photoelectric detectors respond more quickly to smoldering fires that give off larger combustion particles."; CPSC (2016): "A photoelectric smoke alarm can sometimes be many minutes faster than an ionization smoke alarm in responding to a smoldering fire." | no official source names one |
| Dual sensor | no official source names one | CPSC (2016) recommends: "Install both ionization and photoelectric type smoke alarms on every level of the home." | no official source names one |
InstaBids is an AI-run marketplace for homeowners and property managers: describe a home job once, by chat or through your own AI assistant, add photos, and get multiple written quotes on the same scope, compared apples to apples, with no phone calls or home visits before you pick.
Post your job on InstaBids, and contractors can bid in writing on one written scope.
- Describe it onceBy chat, or through your own AI assistant, and add photos.
- Post it and send itContractors bid in writing on that scope.
- Compare line by lineEvery quote is written against the same scope.
- You chooseContact details stay hidden until you pick and they confirm.
For your AI assistant
MCP connector · REST API · plain HTMLHand any of these to your assistant and it can help you write this job's request; you send the request yourself. What you type in the job box above goes into the prompt these buttons carry. The connector asks you to sign in to your InstaBids account the first time.
- MCP connector URL
https://instabids.ai/api/agent/mcp - Agent API (OpenAPI)
https://instabids.ai/openapi.json - Start-request link
https://instabids.ai/intake?from=options-smoke-alarm&utm_source=us&utm_medium=page&utm_campaign=options&page_type=options#job=smoke%20alarm%20installation - Prompt for any AI, with your job
- ChatGPTOpens with the prompt
- ClaudeOpens with the prompt
- GrokOpens with the prompt
- GeminiCopies the prompt, then opens
Every page is plain HTML. Steps for every assistant: add to your assistant.
Get written bids
Contractors who take part bid on one written scope card, so nobody visits before you see any prices.
The contractor you pick may visit once before settling the final price against the percentage the bid stated.
Homeowners pay InstaBids nothing.
Post your job on InstaBids: describe it once, and contractors who take part bid in writing on that one scope.
Sources for the facts on this page
- Consumer Product Safety Commission, Smoke Alarms – Why, Where, and Which? (Revised July 2016), government, read 23 October 2026.