First Alert HD6135FB Hardwire Heat Alarm With Battery Backup

Highlights:

• 120-volt AC/DC with 9-volt battery backup
• 135 degrees Fahrenheit fixed rate and rate-of-rise temperature sensing
• Microprocessor controlled for fewer nuisance alarms
• The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality
• Latching alarm indicator which automatically identifies which unit initiated the alarm
• 120-volt AC inter-connectable (with maximum 18 compatible devices)
• 85-decibel horn
• Meets UL requirements

Shipping calculated at checkout. Usually ships within 24 hours.

We ship within the contiguous United States.

Returns accepted within 30 days by mail. Return shipping is paid by the customer. See our refund policy.