--- product_id: 438055098 title: "Car Back-up Alarm, 12V/24V 105dB Reverse Beeper Backup Alarm Vehicle Auto Back Up Horn Car Reverse Alarm Buzzer Siren with Light" brand: "drisentri" price: "HK$119" currency: HKD in_stock: true category: "Dri Sentri" url: https://www.desertcart.hk/products/438055098-car-back-up-alarm-12v-24v-105db-reverse-beeper-backup store_origin: HK region: Hong Kong --- # 12V-24V universal power IP67 waterproof durability 105dB loud & clear alert Car Back-up Alarm, 12V/24V 105dB Reverse Beeper Backup Alarm Vehicle Auto Back Up Horn Car Reverse Alarm Buzzer Siren with Light **Brand:** drisentri **Price:** HK$119 **Availability:** ✅ In Stock ## Summary > 🚨 Backup with confidence—be heard, be safe, be unstoppable! ## Quick Answers - **What is this?** Car Back-up Alarm, 12V/24V 105dB Reverse Beeper Backup Alarm Vehicle Auto Back Up Horn Car Reverse Alarm Buzzer Siren with Light by drisentri - **How much does it cost?** HK$119 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/438055098-car-back-up-alarm-12v-24v-105db-reverse-beeper-backup) ## Best For - drisentri enthusiasts ## Why This Product - Trusted drisentri brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Powerful 105dB Alert:** Cut through city noise with a piercing backup beep that demands attention and enhances safety. - • **Universal 12V-24V Compatibility:** Seamlessly fits trucks, cars, vans, and heavy machinery—one alarm for all your rides. - • **Rugged ABS Build with IP67 Rating:** Engineered to withstand harsh weather and daily wear, ensuring long-lasting reliability. - • **Smart Reverse Polarity Protection:** Built-in safeguard prevents damage from wiring mistakes—peace of mind included. - • **Effortless Plug & Play Installation:** Save time and energy with a quick setup that gets you back on the road faster. ## Overview This 12V/24V car backup alarm delivers a powerful 105dB sound to alert pedestrians and enhance vehicle safety. Crafted from durable ABS plastic with an IP67 waterproof rating, it’s built to last in all conditions. Easy to install and compatible with a wide range of vehicles, it also features automatic reverse polarity protection to prevent wiring errors. Ideal for trucks, cars, vans, and heavy equipment, this backup alarm combines reliability with professional-grade performance. ## Description Features: - Sturdy and durable. - Easy to install. - Long service life. - Professional equipment cutting and manufacturing, superior performance. - It can be protective when connect the wire inversely or wrong. - The horn voice is loud and clear, universal fit for different cars. Specifications: Item Type: Reversing horn Material: ABS Plastic Color: Black & Red Speciality: With single sound and light Voltage: DC 12V - 24V Horn Diameter: 50mm Rated Current: 300mA Volume: 105dB Impedance: 2Ω Special Functions: Waterproof Output Power: 15W Waterproof Rate: IP67 Place of Application: Motorcycle Car Vehicle Package Includes: 1 x Car Backup Alarm ## Features - High-quality Material: Our car backup alarm made of ABS material, which makes it light weight, sturdy and durable. It has good wear resistance, has a long service life. - High Sound Level: The back up horn voice is loud and clear, can make a powerful beeping sound that is 105dB, effectively remind pedestrians to attract their attention, greatly improving safety and reliability. - Easy Installation: The buzzer horn is very easy to install, without taking up a lot of your time, very convenient, can effectively save you energy and time. - Protect Function: The car reversing horn is with automatic protection function, can play a protective role when the wires are reversed or connected incorrectly. - Wide Application: The car back-up alarm is suitable for 12-24V cars, such as trucks, cars, excavators, heavy vehicles, van, etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09VC48JHC | | Audible Noise | 105 Decibels | | Best Sellers Rank | #321,311 in Automotive ( See Top 100 in Automotive ) #105 in Backup Monitors & Alarms | | Brand | DriSentri | | Compatible Devices | Cars, Motorcycles, Vans, Trucks | | Customer Reviews | 4.4 4.4 out of 5 stars (252) | | Includes Remote | No | | Manufacturer | DriSentri | | Mfr Part Number | EPC_HOR_30H_2PCS | ## Product Details - **Brand:** DriSentri - **Compatible Devices:** Cars, Motorcycles, Vans, Trucks - **Manufacturer:** DriSentri - **Noise Level:** 105 Decibels - **Remote Control Included?:** No ## Images ![Car Back-up Alarm, 12V/24V 105dB Reverse Beeper Backup Alarm Vehicle Auto Back Up Horn Car Reverse Alarm Buzzer Siren with Light - Image 1](https://m.media-amazon.com/images/I/514an0arUiL.jpg) ## Frequently Bought Together - DriSentri Car Back-up Alarm, 12V/24V 105dB Reverse Beeper Backup Alarm Vehicle Auto Back Up Horn Car Reverse Alarm Buzzer Siren with Light - DriSentri Car Back-up Alarm with Wire/Light, 105dB Universal Waterproof Car Reverse Horn Reverse Beeper Warning Alarm Buzzer Siren for Car Vehicle Truck, 12V-24V --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hk/products/438055098-car-back-up-alarm-12v-24v-105db-reverse-beeper-backup](https://www.desertcart.hk/products/438055098-car-back-up-alarm-12v-24v-105db-reverse-beeper-backup) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-08*