banhao 100W 12V Alarm Siren — 7-Sound Police Horn

BANHAO Alarm Horn Siren is a 100W, 12V multi-sound emergency speaker that delivers seven selectable warning tones plus a megaphone mode for clear, long-range alerts.

This compact siren and speaker system is built for vehicles and equipment that need a loud, reliable warning device. Engineered to cut through environmental noise, the unit offers multiple tones, a high-decibel driver, corrosion-resistant housing and simple mounting hardware so you can fit it to cars, trucks, lorries, boats or fixed installations.

How loud is this BANHAO siren and will it be heard in noisy conditions?

The siren’s high-sensitivity speaker produces sound pressure levels typically between 115–135 dB, designed to penetrate traffic and industrial noise. That makes it suitable for situations where you need immediate attention or direction from a distance.

• 100W amplifier power for strong output
• Speaker tuned for long-range audibility
• 115–135 dB estimated sound level for high-noise environments
• Multiple tones to match situational urgency

What warning tones and functions does the system include?

The BANHAO unit offers seven distinct alarm tones plus a megaphone mode, letting operators switch quickly between rapid alerts, intermittent beeps and low-frequency warnings. Tone selection helps tailor the alert to traffic, loading docks, emergency response or crowd control needs.

• Seven preset sound patterns for different scenarios
• Megaphone/PA mode for short spoken announcements
• Quick switching so you can change tones on the fly
• Clear tonal separation to reduce confusion in busy settings

Is the BANHAO siren durable and easy to install?

Yes — the housing is designed to resist water and corrosion and withstand a broad temperature range from -30°C to 60°C. It ships with a universal mounting bracket and straightforward fitting steps so most users can install it without specialized tools.

• Waterproof, corrosion-resistant construction for outdoor use
• Wide operating temperature range for harsh climates
• Universal brackets included for roof, bumper or fixed-mount setups
• Simple wiring and mounting instructions—no professional equipment required

What support can I expect after purchase?

BANHAO offers customer service assistance if you have questions about setup, operation or performance. They aim to resolve issues and ensure the kit meets your application needs.

• Customer support for installation and troubleshooting
• Help with replacement or part questions if needed

Who is this for: This siren is appropriate for fleet operators, emergency responders, worksite supervisors and anyone who needs a compact, high-output warning system for vehicles or stationary equipment. Choose it if you require multiple tone options, strong long-range sound, and a weatherproof build you can mount quickly on cars, trucks, lorries or boats.