How much does this cost to the nearest dollar?

Kidde Smoke Detector, Hardwired with Lithium Battery Backup & Strobe Light
The Kidde Smoke Detector, Hardwired with Lithium Battery Backup & Strobe Light, model is an AC/DC powered, photoelectric smoke alarm that operates on a 120V power source with a sealed, 3V lithium battery backup, in the event of a power failure. Using photoelectric sensing technology, the wired smoke alarm detects visible fire particles (associated with smoldering fires) sooner than ionization alarms. A single, strobe light in the middle of the unit alerts of fire or smoke to the hearing impaired. A Hush feature silences the smoke alarm for approximately 10 minutes. UL Certified with a limited warranty. Photoelectric sensing technology - hardwired smoke detector detects

Price is $82.00

Price: $82