Choosing the right onboard load scale for air suspension helps trucking operators monitor axle weights, improve load distribution, and maintain compliance with weight limits. This guide reviews top options designed for tandem axles and single height control valve (HCV) systems, focusing on ease of installation, accuracy, and compatibility with various air suspension setups. All selections below are compatible with common air-suspension configurations and emphasize straightforward calibration for real-time weight data.
| Product | Brand | Key Benefit |
|---|---|---|
| Right Weigh 310-54-RK Onboard Load Scale Kit | Right Weigh | Pounds readout on a 3.5″ gauge; complete air line kit |
| 510 Series Interior Analog Onboard Load Scale (Twin Axle) | Right Weigh | Compact 2″ gauge; fits standard dash cutout |
| PartLogix Air Pressure Gauge Kit | PartLogix | Complete pressure-to-weight conversion kit; no drilling |
| MEASUREMAN Air Pressure Gauge Kit | MEASUREMAN | Comprehensive kit for precise bag pressure readings |
| Right Weigh 510-46-RK Tandem Axle Load Scale Kit | Right Weigh | Chrome bezel option; simple installation |
Right Weigh 310-54-RK Onboard Load Scale Kit
The 310-54-RK kit focuses on tandem axle air suspensions, displaying the on-ground tandem axle group weight in pounds on a readable 3.5-inch gauge. It offers a straightforward installation and calibration process, and includes 30 feet of air line with fittings to connect to an air bag on the suspension. This setup is designed to provide quick visibility of axle loads directly from the cab or nearby mounting locations, aiding in proactive load management.
510 Series Interior Analog Onboard Load Scale (Twin Axle)
This analog gauge option is designed for tandem axle air suspensions with one height control valve. It features a 2-inch gauge that presents axle group weight in pounds and is housed with a chrome or black bezel option. Installation and calibration are described as simple, and it fits standard 2-1/16″ dash cutouts for easy integration into existing vehicle dashboards.
Right Weigh 202-DDG-02 Bluetooth-Enabled Digital Scale
Designed for air suspension tractors, straight trucks, and dedicated tractor-trailer sets, this model features Bluetooth connectivity and a touchscreen LCD that can display weight in pounds or kilograms. It supports two air sensors and can monitor either a dual-height control valve axle group or a dedicated tractor/trailer setup. An estimated steer weight readout is available when installed on a drive axle, enabling more precise load planning for complex configurations.
PartLogix Air Pressure Gauge Kit
This kit provides a complete package to add an air-pressure gauge to an air bag in semi trucks or trailers, with hardware included for mounting on a cross-member under the trailer. No drilling is required, and it enables converting air suspension pressure into weight readings to support load management decisions and compliance checks.
MEASUREMAN Air Pressure Gauge Kit
The MEASUREMAN kit offers a comprehensive solution for monitoring suspension loads on semi trucks and trailers. It emphasizes accurate readings for each air bag, enabling precise weight distribution. The kit is designed for straightforward installation and supports various suspension systems, making it a versatile option for fleets with mixed equipment.
Right Weigh 510-46-RK Tandem Axle Load Scale Kit
This kit is designed for tandem axle load monitoring on single HCV air suspensions and features a chrome bezel option. It provides on-the-ground axle group weight in pounds and includes an air line installation kit for a complete, ready-to-use installation with simple calibration steps.
Right Weigh 510-46-RK Tandem Axle Load Scale Kit (Black Bezel)
Another variant of the tandem axle kit, this model emphasizes a black bezel finish and offers a straightforward installation process with an included air line kit. It is intended for single HCV setups and provides reliable axle weight readings in pounds for efficient load management.
Right Weigh 510-46-RK Tandem Axle Load Scale Kit (Chrome Bezel)
The chrome bezel variant provides a durable, high-visibility gauge appearance and includes an air line installation kit for ease of setup on tandem axle systems. Like other 510-series kits, it is designed for quick calibration and clear weight readings on the axle group.
Buying Guide: Key Purchase Considerations
- Compatibility: Confirm whether the scale supports tandem axle or single HCV setups and whether it integrates with your existing dashboard or cockpit configuration.
- Display and Readout: Consider gauge size (2″ vs 3.5″) and whether the readout is analog or digital, and if Bluetooth or touchscreen features are preferred for your workflow.
- Installation: Look for kits that provide all necessary air lines, fittings, and mounting hardware. No-drill options can reduce installation time and vehicle downtime.
- Calibration: Prioritize products with straightforward calibration procedures to minimize downtime and ensure accurate readings across varying loads.
- Data Use: Decide if you need weight readouts in pounds only or if kilograms are also required, and whether you want data export or mobile app integration.
- Durability: For fleets operating in challenging environments, choose bezel finishes (chrome, black) and rugged housings that resist corrosion and vibration.
- Cost vs ROI: Weigh the upfront cost against potential savings from improved load distribution, compliance, and fuel efficiency due to better ballast management.
All listed products are designed to help fleets monitor axle loads in real time, supporting safer operation and compliance with weight limits. When selecting an onboard scale, assess your suspension type (tandem vs single HCV), dashboard mounting options, and the preferred readout format to maximize value and reliability.