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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £3.99 | 2 to 3 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
Product Number: AVS-ALARM400
Ashtree AVS‑ALARM400 reverse warning alarm is a 12–24V multi‑frequency unit rated at about 88dB, designed to provide a directional yet less intrusive reversing sound. It offers a double engage night‑silent mode, allowing site managers more flexibility in controlling alarm operation in specific circumstances where noise must be minimised but safety remains critical. The multi‑frequency output helps pedestrians and workers quickly identify the direction of the sound around trucks, HGVs, refuse vehicles and plant equipment. AVS‑ALARM400 is engineered for harsh outdoor environments, making it suitable for construction sites, yards and waste facilities. Fitted at the rear of vehicles and integrated into the reversing circuit, it forms an important part of modern vehicle safety systems.
Featuring a Double Engage Night Silent Mode, this alarm allows enhanced control over noise levels during night-time or noise-sensitive operations while maintaining safety during vehicle manoeuvres. Built for durability and reliable performance, it is suitable for trucks, HGVs, agricultural vehicles, construction plant and industrial machinery.
About PartsForMachines:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Type | Reverse Warning Alarm |
|---|---|
| Voltage | Multi voltage 12-24V |
| Lead Length | 300mm flying lead |
| Approval | Reg 10 approved |
| Rating | IP67 |
| Mounting | Industry standard mounting |
| Dimension | 11cm x 8cm x 4.5cm |
| Sound Level | 88dBa |
| Tone | Multi-frequency reverse twice |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
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Standard Delivery: £3.99
Delivery Estimate: 2 to 3 working days
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| Technical Specification | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PRODUCT NUMBER | AVS-ALARM500 | AVS-ALARM600 | AVS-ALARM100 | AVS-TPD100 | AVS-ALARM300 | AVS-ALARM200 | AC2725G | CTS0750 | AC0507B | AC0806B |
A. Standard UK Mainland delivery is 2–3 working days.
A. No, delivery charges are calculated separately at checkout based on order weight, size, and delivery location.
A. We accept returns within 30 days of purchase for items that are unused, undamaged, and in their original packaging. Returns are available only for UK-delivered orders and must include proof of purchase.
Before returning an item, please contact us at [email protected] to obtain a Return Merchandise Number (RMN). You may also be asked to share images of the product and its packaging for verification.
Items that do not meet these conditions will not be accepted for return. If your return is approved, we will initiate a refund to your credit card or original method of payment. A restocking fee of up to 15% of the order value may apply to each returned item.
A. This product is covered under a 12 month warranty from the date of purchase.
A. Ashtree AVS-ALARM400 provides an 88 dB multi-frequency warning sound whenever a vehicle reverses.
A. AVS-ALARM400 is designed for 12–24 volt electrical systems, including most trucks, vans and site machines.
A. Its multi-frequency sound profile makes the alarm more noticeable against varied background noises on roads and sites.
A. AVS-ALARM400 can be installed on hgvs, vans, forklifts and construction equipment needing modern reverse warnings.
A. Yes, AVS-ALARM400 is built to withstand vibration, dust and weather typically encountered by working vehicles.
A. AVS-ALARM400 can often replace older units when its 12–24v rating, sound level and mounting locations align.
A. Yes, AVS-ALARM400 suits fleets that want multi-frequency alarms as part of their construction equipment parts strategy.
A. Installers should confirm wiring polarity, mount the unit in a position clear of obstructions and verify operation in reverse.
A. Machinery spare parts buyers may use AVS-ALARM400 to upgrade fleets from basic tone alarms to multi-frequency warning devices.
A. It works alongside mirrors, cameras and beacons to create layered safety warnings around reversing vehicles.
A. AVS-ALARM400 is particularly effective in mixed traffic yards where clear but moderate sound levels are required.
A. Yes, its voltage range and rugged design make it suitable for road-going lorries and off-highway plant.
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