Smart Smoke Alarm [EN 14604]

  • Safe and Reliable: Comply with CE EN14604 (Certified by Intertek). Alarm at maximum 85dB.
  • Alarm Linkage: When one alarm detects smoke, all alarms will chirp to remind you. (Purchase multiple smoke alarms.)
  • Alert: Your Meross app or Apple Home app will receive an alert instantly when danger happens.
  • Battery Replaceable: 2 x 1.5V AA batteries included and replaceable.
  • Automation: Set triggers to control other Meross devices in the Meross app.
  • Smoke and Overheat Detection: In addition to smoke detection, it can also detect overheating. When the temperature is too high (54 - 70℃), it will chirp to remind you.
  • Control Up to 16 Devices: One hub is able to control 16 meross devices (sensors, detectors, thermostat valves) at same time.
  • Works with Apple HomeKit and is compatible with SmartThings.
Sensor Type
  • Photoelectric
  • DC 1.5V × 2 Alkaline AA battery, replaceable, typical about 1 year
Recommend Battery
  • Energizer: E91 / Gold Peak Group: GP 15A LR6 / Raymax: LR6
Alarm Volume
  • > 85 dB (A) at 3m (10ft)
Alarm Sensitivity
  • 0.115 - 0.168 dB/m
Heat Sensitivity
  • 54 - 70°C (129 - 158℉)
Alarm Dimensions (Dia × H)
  • φ120 × 36.7 mm (φ4.72 × 1.44 in.)
Hub Dimensions (W × D × H)
  • 59 × 41 × 21 mm (2.3 × 1.6 × 0.8 in.)
GS559A Alarm Weight (Without Battery)
  • 120±5g (4.23±0.18oz)
GS559A Alarm Weight (With Battery)
  • 162±8g (5.71±0.28oz)
GS559AH Product Weight
  • 405g±10g (14.29±0.35oz)
Wireless Standard
  • 802.11 b/g/n 2.4GHz Wi-Fi (smart hub)
Package Contents
  • 1 × Alarm
  • 2 × Expansion Screw
  • 1 × User Manual
  • 2 × 1.5V AA Battery
  • 1 × Power Adapter
  • 1 × USB Cable
  • 1 × Smart Hub
  • 1 × CE DOC
System Requirements
  • Smart phone running iOS 13 or later, Android 6.0 or later
  • Existing Wi-Fi network
  • Operating Temperature: -10°C~40°C (14°F~104°F)
  • Storage Temperature: -20°C~50°C (-4°F~122°F)
  • Operating Humidity: 30%~93%­ non-condensing
  • Storage Humidity: 10%~93%­ non-condensing
  • CE, RoHS, WEEE
How long can GS559A be used?

Under normal circumstances, battery can be used for 1 year. If the power is depleted, you can use it after replacing 2 × AA batteries.

What is the alarm volume of this product?

≥85 dB(A) at 3 meters.


How many smart alarms can the smart hub support?

One smart hub can support up to 16 smart alarms. You can set up multiple hubs to manage dozens of smart alarms.

You can pair multiple GS559A under the same Hub so that you can use the linked alarm function, and when one Alarm alarms, the other Alarms can also alarm.
If you purchase multiple GS559A and pair them under each Hub separately, you will NOT be able to use the linked alarm function this way.

Why does the alarm do not respond when I simulate smoke to test?

It may be that the concentration of smoke has not yet reached the alarm threshold. Simulating smoke yourself can easily cause a fire. For your safety, we recommend that you use our Test function to test the equipment.

How to set up HomeKit alarm GS559A?

The setup includes hardware installation and software installation. We recommend you to use meross app to set up. In meross app, you will enjoy crystal clear step-by-step instructions, dedicated troubleshooting, tips for use, and firmware upgrade notice. You can only set up HomeKit in meross app, but you will be able to manage your alarm in both meross app and Apple Home app.

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