What is a latching alarm indicator?

Asked By: Maravilla Heizer | Last Updated: 13th March, 2020
Category: home and garden smart home
4.8/5 (1,160 Views . 37 Votes)
The Latching Alarm Indicator is activated after an. Alarm is exposed to alarm levels of smoke or carbon. monoxide. After smoke or CO levels drop below alarm. levels, the red smoke or CO LED will begin to flash.

Click to see full answer


Then, what does alarm latch mean?

Latching Alarm Indication – Alarm Latch and Low Battery Latch Every BRK photo and ion smoke, combination and CO alarm has a Latching Alarm feature. The unit “latches” or remembers which alarm initiated the event. The Latching Alarm feature will remain active until you press the test/silence button.

Beside above, what is First Alert latch? The First Alert BRK SC9120B Hardwired Combination Smoke and Carbon Monoxide Alarm uses an electrochemical CO sensing technology and Ionization sensor for smoke detection. Its latching alarm indicator automatically identifies which unit initiated the alarm–even after the conditions that set off the alarm have subsided.

Considering this, why is the red light flashing on my smoke detector?

The flashing red light gives a visual indication that the smoke alarm is functioning properly. It also indicates a working battery is connected to the smoke alarm.

Why is my smoke alarm beeping 3 times?

When the batteries are nearly discharged after working for a period of time, in some cases up to 6 months or 1 year, for the replaceable type, the smoke sensors are designed to make a beep sound at intervals as a warning that the battery need to be replaced or recharged. Discharged batteries also lead to False alarm.

36 Related Question Answers Found

Why is my fire alarm beeping every 30 seconds?

The battery may need to be replaced. The smoke alarm may have reached the end of its life (sealed battery models only). An alarm will chirp every 30 seconds to indicate it's time to replace the alarm. There may be interference from a similar system nearby (wireless alarms only)

Why is my smoke detector blinking red every 10 seconds?

If the smoke is not too dense, the alarm will silence immediately and the red LED blinks every 10 seconds. This indicates that the alarm is in a temporarily desensitized condition. The smoke alarm will automatically reset after approximately 10 minutes and sound the alarm if particles of combustion are still present.

Why is my hard wired smoke detector beeping?

Most hard-wired smoke detectors include a 9-volt backup battery that's supposed to kick in if your home loses electricity. If that battery is running low, your detector alerts you with a high-pitched beep. Remove the old battery and replace it with a new one. Press the “test” button and listen for a beep.

Why does my smoke alarm keep going off early in the morning?

Smoke alarms may sound off briefly when power is interrupted, then restored. Power interruptions are common in areas where utility companies switch grids in the early hours of the morning. When the furnace is turned on for first use or the alarm is too close to the furnace.

Why does the green light blink on my smoke detector?


Most smoke detectors, the green LED is used for indicating power status. With my smoke detector (Kidde brand), flashing green means low battery or no batteries installed. With constant green, it means AC power connected. It will blink green every 60 seconds if AC disconnected, powered by batteries.

Why does my smoke detector keep beeping even after I change the battery?

If you have changed the battery in your chirping smoke detector and it still chirps, you might think your detector is bad. With the battery removed, press and hold the test button for 15-20 seconds. Replace the new battery in the detector and plug in the power supply. Restore power to the circuit breaker.

How do I silence my First Alert smoke detector?

Press and hold the "Test/Silence" button on the side of the detector for 10 seconds. Release the button to enter "Silence mode" which quits the alarm from sounding.

Can you unplug a hard wired smoke detector?

If there are connecting wires, it is a hard-wired unit and the wires can be disconnected. Dismount from the ladder and flip the circuit breaker switch that controls the smoke detector. If there is no obvious marking on the panel that designates a switch for the detector, throw the main breaker to the "Off" position.

Should my smoke alarm be flashing red?

Smoke alarms will make a 'beep' or 'chirping' sound when they have a low battery or are faulty. All smoke Alarms also have a red light that flashes momentarily every 40-60 seconds to visually indicate they are operating. This same red light flashes continuously when the Smoke Alarm has been activated.

How do you reset the red light on a smoke detector?


Press the “Test,” “Silence” or “Hush” button to reset the smoke detector if it has a blinking red light. Press "*72" (star, seven, two) to reset a smoke detector on an alarm system with a keypad.

Why does fire alarm go off for no reason?

Dust can reflect the light particles, similar to smoke, which gives you a false fire alarm. To clean, simply remove the outer casing. Leave a careful amount of space between the smoke detector and bug spray. Keep in mind that harsh chemicals can also cause smoke detectors to go off.

What does a blue light on a smoke detector mean?

Model Ei405TY - When the Alarm beeps and the red light flashes at the same time or the blue light flashes every 9 seconds it indicates the battery is depleted and the entire alarm must be replaced. This normally occurs after 10 years has elapsed (see figure 7 to remove unit from the mounting plate).

What does a blinking blue light on a smoke detector mean?

It says a blue blink every 5 seconds is a previous alarm condition at an unidentified source.

Why does my fire alarm go off at night?

This battery characteristic can cause a smoke alarm to enter the low battery chirp mode when air temperatures drop. Most homes are the coolest between 2 a.m. and 6 a.m. That's why the alarm may sound a low-battery chirp in the middle of the night, and then stop when the home warms up a few degrees.

Why is my fire alarm beeping?


The battery drawer must be completely closed for the battery to make contact with the terminals. As the battery in a smoke alarm becomes weak, the smoke alarm will "chirp" about once a minute to alert you that the battery needs to be replaced. Note: Only the alarm with a low battery will chirp.

What is hush mode on a smoke detector?

What does the "hush" feature do on a smoke alarm? The “hush” feature will silence the alarm for several minutes giving whatever set off the alarm, smoke from burnt toast or steam from a shower for example, a chance to dissipate.

Do ionization smoke alarms detect carbon monoxide?

Carbon Monoxide Detector with Ionization Smoke Alarm
Just like the photoelectric combo unit, these detectors will detect CO2 as well as smoke. Ionization smoke alarms are good at detecting kitchen fires or fast flaming fires. The drawback to these units is that they are prone to false alarms.