ROCKBROS 115dB Bike Alarm with Remote — Waterproof Vibration Sensor, 3-Volume Levels

The ROCKBROS 115dB Bike Alarm is a compact, weatherproof anti-theft device that detects vibration and motion and emits an adjustable, high-decibel alarm with remote control notification.

This alarm combines sensitive motion detection, selectable volume and tones, and rugged waterproof construction to protect bicycles and motorcycles from tampering and theft. Lightweight and easy to mount, the unit works in wet conditions and includes multiple sensitivity and sound options so you can tailor alerts to your environment.

How loud is the alarm and can I change its volume?

The unit delivers up to 115 dB and offers three volume tiers so you can choose the right intensity for your location. Lower settings suit crowded urban areas while the highest setting maximizes deterrence in isolated spots.

• Adjustable volume: 83–85 dB, 105–108 dB, 110–115 dB
• Three built-in alarm tones to vary the sound signature
• Remote control lets you arm/disarm and trigger the alarm at a distance

What kind of motion detection does it use and how reliable is it?

ROCKBROS uses advanced vibration and motion sensors to detect subtle tampering or impacts. Sensitivity can be set to three levels, allowing the alarm to ignore minor bumps while responding to deliberate interference.

• Smart vibration sensing recognizes suspicious movement
• Three sensitivity settings for customization
• Instant alert response when threshold is exceeded

Will the alarm survive rain, snow, and rough outdoor conditions?

The housing is built from wear-resistant ABS and is fully waterproof, designed to operate reliably in wet and cold weather. Its robust construction protects internal electronics so the system continues to perform after exposure to the elements.

• Durable ABS casing resists wear and impact
• Waterproof construction for use in rain and snow
• Low-maintenance design suitable for year-round outdoor use

How easy is installation and which vehicles will it fit?

Installation is tool-free and straightforward: the alarm is compact and mounts to frames, seat posts, or under panels without extensive modification. It suits bicycles and motorcycles, offering a universal fit for most common frame sizes.

• Lightweight, compact profile for discreet mounting
• Universal design fits most bicycles and motorcycles
• No complex wiring or professional installation required

Who this product is for: Riders who want a dependable, low-effort security upgrade for their two-wheeled vehicle will benefit most. The ROCKBROS 115dB Bike Alarm is ideal for urban commuters, students, and weekend riders who park outdoors and need an immediate, audible deterrent to tampering. It also serves motorcyclists who prefer a compact, weatherproof alarm that’s simple to install and adjust without specialized tools.