Kidde 21006373 contractor 6 pack is sold as one master pack that contains 6 individual units. These alarms are 120-Volt hardwire ionization smoke alarm with 9-Volt battery backup and Hush feature. Smoke alarms have the ability to function as single units or in an interconnected system.
- Test button, tests unit's electronic circuitry, horn, and battery function
- Hush feature - temporarily silences nuisance alarms
- Quick connector - makes installation fast and easy
- Tamper resist locking pin - helps deter alarm tampering and theft