Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.
x
Sorry, Something went wrong!
Backup Alarm 12V-48V 107dB Reverse Beeper for Truck Forklift RV
✅ In stock
⭐ Lowest price we've tracked
D
Grade
Analysis Confidence
90%
🏷️ Price includes Coupon savings
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 19, 2026 3:39 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
😐 Weak Deal- 😐Verdict: Weak Deal. Marginal discount. Prices may drop further soon.
- 💰The price is modestly below what this product ordinarily sells for.
- 🏷️The retail sticker price has been slashed by 87% — a steep markdown from the official listing.
- 📉Our analysis places this at the most competitive price point we have ever tracked for this product — an exceptional moment to buy.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
7.39/28
Recent Value
0.18/22
Market Standing
4.21/20
Deal Strength
20/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
LingYaoAutoPart
📦 Fulfillment
Fulfilled by Amazon
🚚 Shipping
Free Shipping
Product Details
✓12V-48V Auto-Ranging 107dB Backup Alarm (No Jumper Needed) Broadband reverse beeper that auto-scales to system voltage — works on 12V pickups, 24V box trucks, 36V industrial stackers, and 48V electric forklifts without resistor mods or voltage selectors. Emits 103-111 dB(A) at 1 meter (typical 110dB ±3dB). Draws ~1A. Match your vehicle's reverse-lamp circuit voltage before ordering. Not a 3-wire relay module, not a backup camera, not a horn.
✓Universal 2-terminals Install — Red to Reverse +, Black to Ground Connect red lead to reverse lamp positive or reverse switch output, black lead to chassis ground. No relay, no additional module. Includes 3.25-inch industry-standard slotted bracket with 2-screw terminals. Mounts to frame rail, bumper, battery box, or rear crossmember. Reuse existing hardware or use supplied bracket holes.
✓Covers Class 3-8 Trucks, Vans, Forklifts, Buses & Heavy Equipment Engineered for Class 3-8 trucks, cargo vans, freight lorries, semi-trailers, forklifts, school buses, RVs, excavators, loaders, agricultural tractors, yard goats. One SKU replaces fleet-specific beepers across mixed-voltage yards.
✓IP67 Waterproof for Harsh Outdoor Conditions Sealed ABS housing with silicone gasket survives pressure washing, rain, mud, snow, and salt spray. Rated IP67 — dust-tight and waterproof to 1 meter immersion. Copper-alloy internal wiring resists vibration fatigue on rough terrain. Operating temperature range -40°F to 185°F.
✓107dB Penetrates Jobsite Noise — Confirm 2-terminals& Voltage Range Critical: This alarm is 2-terminals only (power + ground). If your vehicle requires a 3-wire unit with a separate trigger/ignition lead, this will not work. Also confirm your system voltage is 12-48V DC — not 6V, not 72V/80V industrial (some large forklifts exceed 48V). If installing on a 48V electric vehicle, verify the reverse circuit is 48V, not a separate 12V accessory circuit.
⚙️ Specifications
Brand
LINGYAO
Compatible Devices
Trucks, Commercial Vehicles, Forklifts, Golf Carts
Noise Level
110 db
Remote Control Included?
Yes
Manufacturer
LINGYAO
Model
LY-304-S
Item Weight
10.8 ounces
Product Dimensions
4.33 x 3.15 x 3.15 inches
Item model number
LY-304-S
Is Discontinued By Manufacturer
No
Manufacturer Part Number
LY-305
