USI Smoke Sensing Battery-Operated Smoke and Fire Alarms. Model MDS300 or MDS300L from $15.99–$22.99.

USI Smoke and Fire Alarms

Up to 36% Off
30+ bought
Discount 36%
Over 30 bought
no longer available

Product Details

USI Battery-Operated Smoke and Fire Alarms

  • Model: MDS300 or MDS300L
  • Universal Smoke Sensing Technology for faster detection
  • Quickly responds to slow-smoldering and fast-flaming fires
  • Provides nuisance alarm protection
  • Battery-operated alarm provides continued protection in the event of a power outage
  • Self-diagnostics check to ensure proper operation
  • Sensitivity adjustment for changes in temperature or humidity
  • Provides 10 years of continuous protection and sounds when it is time to replace alarm
  • Quick activation pull-tab and front-loading battery drawer
  • Replace the battery without removing the alarm from bracket
  • Condition: new

  • Powered by a 9-volt alkaline battery (included)
  • Dimensions: 2”x7”x10.38”
  • Powered by a 9-volt lithium battery (included)
  • Dimensions: 10” (W) x 7” (L) x 2” (H)

For questions pertaining to this deal, click the Ask a Question button below. For post-purchase inquiries, please contact Groupon customer support.

Goods sold by Groupon Goods. View the Groupon Goods FAQ to learn more.

The Fine Print

Free returns. Does not ship to AK/HI/Canada/Puerto Rico. Most orders are delivered within 12 business days from the purchase date. Does not ship to PO boxes. See return policy. Must pay applicable tax and provide name and shipping address at checkout, which will be shared to facilitate shipping. How is the strike-through price determined?

Customer Reviews

Product Picture for Customer Review

USI Smoke Sensing Battery-Operated Smoke and Fire Alarms. Model MDS300 or MDS300L from $15.99–$22.99.

Rate first, then write a review.

There are no user reviews yet. Be the first one to review.
To ensure the quality of reviews, all reviews are screened for spam and content that may be offensive to other people.

Please Sign In or Sign Up to rate or vote

By purchasing this deal you'll unlock points which can be spent on discounts and rewards. Every 5,000 points can be redeemed for $5 Off your next purchase.