The RAC GEO IV makes mobile traffic asset management and distance measuring highly efficient and safe. Plug the device into a vehicle’s USB port for power—no hardwired connection, vehicle calibration, or complex installation required—to easily measure distances as you drive. Utilizing an internal WAAS-enabled GPS receiver, it provides high-accuracy data, allowing you to jump from vehicle to vehicle seamlessly. The system is housed in a rugged, non-warping ABS plastic case and features dual high-intensity LED windows with adjustable brightness for effortless reading in any lighting condition. Once data is captured, it integrates seamlessly with the RACPro software for advanced data analysis, report generation, and mapping.
The RAC GEO IV
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Power Supply: 5 to 16 VDC, negative ground (Power consumption: 1.5a @ 5v, 0.5a @ 12v)
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Memory Size: 128 MB (Stores 1,000,000+ events & 100+ hours of GPS tracking)
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Display Type: Dual 6-digit window, high-intensity LED with 4 brightness levels
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Speed Range: 0 – 999 mph / kph (Displayed simultaneously with distance)
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Distance Accuracy: +/- 5 feet per mile (Internal GPS); +/- 1 foot per mile (External sensor)
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GPS Accuracy: ~2 meters with WAAS enabled (~6 meters without WAAS)
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GPS Receiver: 66-channel, WAAS-enabled internal receiver
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Operating Temperature: 32°F (0°C) to 167°F (+75°C)
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Data Interface: USB Serial Port
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Keyboard: 20 sealed keys (5 million operations rated) with click & tone feedback
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Dimensions: 7.8″ W x 2.3″ H x 1.2″ D
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Weight: 6.5 oz.
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Warranty: 5-year instrument warranty
RAC GEO IV Sign Inventory Bundle
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RAC GEO IV Instrument
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RACPro Software
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Laptop Computer
(with interface cable & carrying case) -
Auto Adapter Power Supply
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External GPS Antenna
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Mounting Brackets
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User Manual

Frequently Asked Questions About the RAC GEO IV
The RAC GEO IV is JAMAR’s current RAC Geo model, and it replaces the RAC Geo II. The main changes are:
- A new USB-C port that combines power and data transfer.
- Updated electronics for optimized performance and long-term serviceability.
- Increased internal memory for compatibility with an optional auxiliary camera, which has not been released yet.
- The same device layout and functionality as the RAC GEO II.
No, if your RAC GEO II meets your needs, there’s no need to upgrade. The RAC GEO IV keeps the same core functionality, so technicians who already know the RAC GEO II can pick up the RAC GEO IV without relearning their tools.
No. It powers from a vehicle’s USB port, with no hardwired connection and no vehicle calibration, so you can move it from one vehicle to another.
Its 128 MB memory holds more than 1,000,000 inventory events and over 100 hours of continuous GPS tracking.
Data downloads to JAMAR’s RACPro software, which handles analysis, mapping, graphing, and report generation.

