Description
Product Overview
The Firestone 9964 AC diagnostic tool is engineered for precision and durability in demanding automotive environments. Housed in a rugged aluminum chassis, the device measures a compact 5 x 2 x 3 inches and weighs only 6.4 ounces, making it easy to handle and store. Its core function is to accurately measure refrigerant pressure, providing technicians with real‑time data essential for diagnosing air‑conditioning system performance. The tool features a high‑resolution digital display, interchangeable pressure ports, and a built‑in temperature sensor, ensuring comprehensive diagnostics for a wide range of vehicle makes and models.
Usage
This diagnostic unit excels in both workshop and field settings. Whether you are performing routine maintenance in a service bay, conducting emergency repairs on a roadside, or training new technicians, the 9964 delivers fast, reliable readings. Its lightweight design reduces hand fatigue during prolonged use, and the intuitive interface allows for quick setup and operation. Ideal for automotive repair shops, fleet service centers, and mobile HVAC specialists, the tool supports efficient troubleshooting of compressor issues, refrigerant leaks, and system over‑charging.
Why Choose Us
Firestone’s reputation for quality automotive products underpins the reliability of the 9964 diagnostic tool. Each unit undergoes rigorous testing to meet industry standards for accuracy and durability. The aluminum housing resists corrosion and impact, extending the tool’s service life even in harsh workshop conditions. Backed by a comprehensive warranty and responsive customer support, Firestone ensures that technicians can rely on consistent performance without unexpected downtime.
Key Features
- Compact aluminum construction for durability and easy handling
- High‑precision pressure sensor with fast response time
- Digital display with clear readouts and temperature integration
- Interchangeable ports compatible with standard AC service fittings
- Lightweight 6.4‑ounce design reduces user fatigue during extended use
FAQ
What refrigerant types can the 9964 measure?
The tool is calibrated for common automotive refrigerants such as R‑134a, R‑1234yf, and R‑152a, providing accurate pressure readings across a wide temperature range.
Is the device battery‑operated?
Yes, it runs on a rechargeable lithium‑ion battery that offers up to 12 hours of continuous use on a single charge.
Can the 9964 be used for both high‑side and low‑side pressure readings?
Absolutely. The interchangeable ports allow you to connect to both high‑side and low‑side service lines, making it a versatile tool for complete system diagnostics.
Does the tool provide temperature compensation?
Yes, the built‑in temperature sensor automatically compensates pressure readings to ensure accuracy regardless of ambient conditions.
What warranty does Firestone offer?
The 9964 comes with a two‑year limited warranty covering manufacturing defects, along with access to technical support and calibration services.
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