Harbor Freight prices › Generators & Engines › Generator Accessories
FIRST ALERTitem 70031
Carbon Monoxide Alarm
Base price$23.99
Benton Harbor, MI shelf$23.99same shelf price as online
$23.99 is about its normal price.
Price alert
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The numbers
- Today
- $23.99
- Usual price
- $23.99
- 90-day low
- $20.39
- Lowest tracked
- $17.99
Apr 27, 2026
Prices by store
Harbor Freight prices some items differently by store, and once you pick a store its site shows that store's shelf price. These come from contributors who share their store; the main price above is the base price, the one HF shows before you pick a store.
| Store | Today | Usually |
|---|---|---|
| Benton Harbor, MI store 583, checked Nov 1, 2026 | $23.99 | $23.99 |
Price history
$18$20$22$24
AugJan ’23JunNovAprSepFebJulDecMay
Best price for anyoneInside Track Club priceRegular price
Every price change
| When | Price | Members | Why |
|---|---|---|---|
| Oct 31, 20261 day, checked 0x | $23.99 | Regular price | |
| Oct 30, 20261 day, checked 0x | $20.3915% off | 15% off any single item (one item a day) | |
| Oct 29, 20261 day, checked 0x | $23.99 | $20.39 | Regular price |
| Apr 28, 2026 to Oct 28, 2026184 days, checked 4x | $23.99 | Regular price | |
| Apr 14, 2026 to Apr 27, 202614 days, checked 0x | $17.9925% off | Coupon | |
| Apr 10, 2026 to Apr 13, 20264 days, checked 1x | $23.99 | Regular price | |
| Jun 30, 2025 to Apr 9, 2026284 days, checked 0x | $19.99 | Regular price | |
| Jun 16, 2025 to Jun 29, 202514 days, checked 0x | $17.9910% off | Coupon | |
| Jul 14, 2023 to Jun 15, 2025703 days, checked 1x | $19.99 | Regular price | |
| May 27, 2023 to Jul 13, 202348 days, checked 1x | $21.99 | Regular price | |
| Jun 5, 2022 to May 26, 2023356 days, checked 1x | $19.99 | Regular price |
Tracking since Oct 16, 2026. Last checked Oct 24, 2026.