Name: 12V Sound & Light Alarm with Adjustable Volume | 110dB Siren
Brand: Sun Cheong Computer Company Limited
SKU: 21TS000847
Price: 120.0 TWD
Availability: OutOfStock

Short Product Description

Upgrade your security system with our versatile 12V Sound and Light Alarm. Featuring a piercing 110dB siren and a high-visibility red strobe, this alarm ensures immediate attention during emergencies. Unlike standard sirens, it includes a built-in volume adjustment knob, allowing you to seamlessly switch between full-volume deterrence and quieter testing modes. Perfect for DIY smart home setups, commercial access control, and engineering projects requiring reliable, customizable alerts.

Key Features

Adjustable Volume Knob: Easily customize the siren's output level from a quiet test tone to a full 110dB blast, adapting to both indoor and outdoor spatial needs.
110dB High-Decibel Siren: Penetrates through ambient noise to effectively deter intruders and alert personnel of emergencies.
High-Frequency Red Strobe: Flashes 150 times per minute, providing a crucial visual cue in loud environments or for the hearing impaired.
Universal 12V DC Compatibility: Low 300mA power consumption ensures easy integration with standard security panels, access control systems, and DIY microcontrollers.
Compact & Wall-Mountable: The lightweight 124x73x47mm design allows for discreet yet effective placement in corners, hallways, or above doorways.

Full Product Description

Customizable Security for Any Environment

Finding the right balance between a highly effective security deterrent and an overly disruptive alarm can be challenging. This 12V Wired Sound and Light Alarm solves that problem with a unique, built-in volume control knob. Whether you need an ear-piercing alert for a noisy factory floor or a more moderate warning tone for an indoor office environment, you have complete control over your security audio.

Dual-Action Alert System: See and Hear the Warning

When an alarm triggers, every second counts. This unit combines a powerful 110dB siren with a rapid-flashing red LED strobe (150 flashes per minute). This dual-action mechanism ensures that the alert is not only heard through thick walls and noisy machinery but also visually identified immediately—an essential feature for hearing-impaired individuals or high-decibel industrial zones.

Seamless 12V Integration & Easy Installation

Designed for universal compatibility, this strobe siren operates on a standard DC 12V power supply with a low power draw (≤300mA). It integrates flawlessly into existing wired burglar alarms, fire alert systems, access control boards, and even custom Arduino or Raspberry Pi STEM projects. The simple two-wire connection and compact, wall-mountable ABS housing make installation straightforward for both professional engineers and DIY enthusiasts.

Built for Reliability and Daily Use

Housed in a durable, heat-resistant casing, this alarm is engineered for stability. The accessible side-mounted volume knob means you can turn the sound down during system maintenance or testing, saving your ears from unnecessary strain, and easily turn it back to maximum for active deployment.

Technical Specifications

Operating Voltage: DC 12V
Rated Current: ≤ 300mA
Sound Level (Volume): 110dB at 30cm
Flashing Frequency: 150 times per minute
Dimensions (L x W x H): 124mm x 73mm x 47mm
Casing Material: Durable ABS Plastic
Installation Method: Surface / Wall Mount (Screws required)

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. Can I completely mute the siren and only use the flashing light?
A. Yes, the external adjustment knob allows you to turn the sound down to a minimum level, though a very faint hum may remain. For a completely silent visual-only alarm, modifications to the internal speaker wire would be required.

Q. How do I wire this alarm to my security system?
A. The unit features a simple two-wire pigtail connection (Red for Positive 12V, Black for Negative/Ground). Simply connect these to your 12V alarm output terminal or a dedicated 12V DC power supply triggered by a relay.

Q. Is this alarm suitable for outdoor installation?
A. While the casing is durable, it is not fully waterproof (no official IP rating). For outdoor use, it must be installed under an awning or inside a weatherproof protective housing to prevent water damage to the electronics.