Cruxer 110dB Bike Alarm — USB‑C Rechargeable with Seatpost Bracket, IP65 Weather‑Resistant, Remote Control

Cruxer 110dB Bike Alarm is a compact, weather‑resistant theft deterrent that senses movement and emits a loud siren, rechargeable via USB‑C and controllable with a long‑range remote.

Designed for bicycles, scooters, motorcycles and other gear, this alarm combines a 3D displacement sensor with adjustable sensitivity and three volume settings to reduce false triggers while delivering a clear deterrent when motion is detected. The unit is IP65 rated for rain protection, mounts in multiple ways, and includes an upgraded nylon bracket and silicone pads to protect your finish.

How does the alarm detect and avoid false alerts?

The Cruxer uses a 3D displacement sensor and refined algorithms to distinguish between small environmental vibrations and meaningful tampering. You can tune sensitivity across seven levels so it responds only to the kinds of movement you care about.

• 3D displacement sensor for multi‑axis detection
• Seven sensitivity settings to match surroundings
• Signal‑processing algorithm to lower false alarms

How loud is it and can I change the sound?

This alarm offers three volume tiers — 90dB, 100dB and 110dB — and three distinct tones so you can choose the loudness and sound pattern that best deters theft without overwhelming nearby areas. Volume and ringtone options are accessible through the alarm controls and remote for quick adjustments.

• Three volume levels up to 110dB for strong deterrence
• Three ringtones to vary the alarm signature
• Remote control for one‑button arm/disarm

What mounting options are available and how durable is the bracket?

The package includes three installation choices — a seatpost/suitable cylindrical bracket, a strap for irregular frames, and double‑sided tape for smooth surfaces — so you can fit the alarm to most vehicles and locations without special tools. The bracket is upgraded to nylon for improved toughness and weather resistance, and silicone backing plates protect painted surfaces.

• Nylon bracket designed for cylindrical mounts like seatposts
• Adjustable strap for non‑cylindrical frames and parts
• Double‑sided tape for attaching to smooth surfaces
• Silicone pads prevent scratches and paint damage

How long does the battery last and what about the remote range?

Powered by a 700mAh lithium cell with USB‑C charging, the alarm can last weeks to months depending on usage patterns, and recharges quickly from a standard USB‑C cable. The included remote features an impressive tested range — up to roughly 70 meters under lab conditions — for easy arming, disarming, and locating your vehicle.

• Built‑in 4.2V 700mAh rechargeable battery
• USB‑C charging for fast, modern recharging
• Remote control range tested up to 70 m (229 ft)
• One‑button arm/disarm and locate functions

Who this is for: Riders, commuters, and owners of small vehicles who want a compact, configurable anti‑theft alarm that balances sensitivity with practical installation choices. If you need a weather‑tolerant alarm with long remote range, multiple mounting methods, and an extra‑sturdy nylon bracket to protect your bike’s finish, this Cruxer unit is built for that use.