Name: Dahua Carbon Monoxide Alarm | LCD Display & Wireless
Brand: Dahua
SKU: 21SY000248
Price: 825.0 TWD
Availability: InStock

Short Product Description

Don’t let the "Silent Killer" catch you off guard.
The Dahua Carbon Monoxide (CO) Alarm provides industrial-grade protection for your home. Featuring a high-precision electrochemical sensor and a clear LCD screen, it detects invisible, odorless CO gas instantly. With a 3-year sensor life and easy wireless installation, it offers peace of mind for families, renters, and property owners. Includes CR123A Battery & 3M Mounting Tape.

Key Features

Precision Detection: High-sensitivity electrochemical sensor accurately detects CO levels from 0-500 PPM.
Visual Safety: Large LCD screen displays real-time gas concentration and battery status.
Loud 70dB Alarm: Powerful siren ensures you wake up or hear the alert from another room.
Fire-Retardant Build: Constructed with PC + ABS materials that resist high heat and flames.
Triple Indicator System: Clear LED lights indicate Power (Green), Fault (Yellow), and Alarm (Red).
Easy "Peel & Stick" Install: No drilling required—mounts easily with included 3M adhesive tape (or screws).
Auto Self-Check: Features a dedicated button for self-testing and silencing the alarm.

Full Product Description

Protect Your Family from Invisible Threats

Carbon Monoxide (CO) is known as the "silent killer" because it is colorless, odorless, and tasteless. It can build up dangerously from gas stoves, water heaters, clogged chimneys, or simply burning charcoal indoors. The Dahua Home CO Alarm is your first line of defense, engineered to alert you long before CO levels become fatal.

Real-Time Monitoring with LCD Display

Unlike standard "blind" detectors that only beep when it's too late, this Dahua model features a digital LCD screen. It displays the current CO concentration (in PPM) in real-time, allowing you to monitor air quality actively. If levels rise, the high-contrast display works in tandem with the audible alarm to give you immediate visual confirmation of the danger.

High-Precision Electrochemical Technology

At the heart of this device is an advanced electrochemical sensor. This technology minimizes false alarms caused by humidity or other gases, ensuring that when the alarm sounds, it’s a real emergency. The sensor is rated for a 3-year lifespan, providing durable, long-term security without constant maintenance.

Built for Safety & Durability

Designed with PC + ABS flame-retardant materials, this unit is built to withstand high temperatures. It operates wirelessly using a powerful CR123A Lithium Battery (included), making it perfect for bedrooms, kitchens, or areas where hardwiring isn't possible.

Technical Specifications

Brand: Dahua Technology
Sensor Type: Electrochemical
Sensor Life: 3 years
Detection Range: 0 – 500 PPM
Alarm Threshold: 150 PPM
Display: LCD digital screen
Alarm Volume: ≥ 70 dB (at 1 m)
Power Supply: DC 3 V (CR123A battery)
Material: PC + ABS (fire retardant)
Dimensions: 117 mm × 72 mm × 29 mm
Working Temperature: -10 °C to +55 °C
IP Rating: IP30
Mounting: Wall mount (screws or 3M tape)

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q: Where should I install this CO detector?
A: For optimal safety, install the alarm in bedrooms and on every level of your home. It should be placed approximately 5 feet (1.5 meters) above the floor, as CO mixes with air, and kept away from direct airflow like fans or windows.

Q: How do I know if the device is working?
A: The device has a "Self-Check/Silence" button on the front. We recommend pressing this button once a week to test the battery and the alarm siren. A green LED light flashes to indicate normal power operation.

Q: Does this detect natural gas or smoke?
A: No, this is specifically designed to detect Carbon Monoxide (CO). It does not detect natural gas (methane) or smoke from fires. We recommend pairing this with a separate smoke detector for complete home safety.

Target Users / Applications

Homeowners & Renters: Ideal for apartments with gas water heaters or gas stoves.
Camping/RV: Portable protection for enclosed spaces when using portable heaters.
Small Businesses: Restaurants or offices using gas appliances.
Caregivers: Protecting elderly relatives who may not smell gas leaks or smoke.