Free shipping on orders overFree shipping over $250 Lower 48 states and DC. Excludes freight and oversize.

NITROGEN/HYDROGEN ELEC LEAK DETCTION SYS - FJC

Part #: FJ5109

The FJC FJ5109 Nitrogen/Hydrogen Electronic Leak Detection System is a professional-grade solution engineered for precise and efficient leak detection in automotive and industrial HVAC/refrigeration systems. Utilizing a safe, non-flammable blend of 95% nitrogen and 5% hydrogen (forming gas), this system offers superior accuracy in pinpointing even the smallest leaks that traditional methods often miss. It is an indispensable tool for technicians seeking reliable diagnostics and cost-effective repairs.

Key Features

  • Advanced Sensor Technology: Equipped with highly sensitive sensors designed to detect hydrogen at levels as low as 5 ppm, ensuring the precise identification of leak points.
  • Universal Refrigerant Compatibility: Certified compliant with SAE J2790, this system is compatible with both R-134a and R-1234yf automotive A/C refrigerant systems.
  • Complete Kit: Includes a deluxe H2/N2 leak detector, a 96” red service hose, an H2/N2 regulator with 2” delivery and contents gauges, and both R-134a and R-1234yf manual couplers for comprehensive functionality.
  • Enhanced Leak Detection: Hydrogen's extremely small molecular size allows it to penetrate micro-leaks, providing superior detection capabilities compared to methods like UV dye or nitrogen-only pressure tests.
  • Safety and Environmental Responsibility: The nitrogen/hydrogen tracer gas mixture is non-toxic, non-flammable, non-corrosive, and environmentally safe, ensuring a safer working environment.
  • Durable and Portable Design: Housed in a protective plastic carrying case, the system features a durable, lightweight construction for ease of transport and field use.

Applications

This FJC Nitrogen/Hydrogen Electronic Leak Detection System is ideal for professional technicians in various settings. It excels in diagnosing leaks in automotive air conditioning systems, including those in EV and hybrid vehicles, where traditional methods may be unsuitable. Beyond automotive, it is highly effective for leak detection in commercial and industrial HVAC, refrigeration units, and any pressure-tested system where a tracer gas is required to locate leaks quickly and accurately. This system facilitates pre-fill leak checks, post-repair verification, and routine maintenance to prevent costly refrigerant loss and system damage.

Specifications

  • Model Number: FJ5109
  • Weight: 9.76 lbs
  • Dimensions: 20 x 5 x 5 inches
  • Gas Type: 95% Nitrogen, 5% Hydrogen
  • Sensitivity: 5 ppm
  • Battery Life: Up to 8 hours
Usually In Stock Usually ships in 24-48 hours Manufacturer Direct

$538.92

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
Add to Cart:
  • (image for) FJC
    Other products
    FJC Homepage
  • Model: 444631
  • Shipping Weight: 9.76lbs
  • Manufacturers Part #: FJ5109
  • Manufactured by: FJC
  • Also Known As: FJ5109

This product was added to our catalog on Sunday 31 May, 2026.

Similar Products

(image for) High Performance Refrigerant Leak Detector w/ Pump
High Performance Refrigerant Leak Detector w/ Pump
General Tools & Instruments RLD382P
Your Price: $258.04
(image for) Nitrogen Leak Test Kit
Nitrogen Leak Test Kit
Mastercool 53010
Your Price: $234.48
(image for) SAE certified J2791 (134A) J2913 (1234yf) leak det
SAE certified J2791 (134A) J2913 (1234yf) leak det
Mastercool 55900
Your Price: $225.04
List Price: $299.95
25% off
(image for) Electronic AC Leak Detector
Electronic AC Leak Detector
Mastercool 56100
Your Price: $199.82
(image for) R1234yf Refrigerant Leak Detection Dye Kit 4972yf
R1234yf Refrigerant Leak Detection Dye Kit 4972yf
FJC 4972yf
Your Price: $90.14
List Price: $147.99
39% off
(image for) Robinair LD9-TG Tracer Gas Leak Detector Tool
Robinair LD9-TG Tracer Gas Leak Detector Tool
Robinair LD9-TG
Your Price: $505.20
List Price: $570.49
11% off
(image for) Tracer Gas Leak Detector Service Kit
Tracer Gas Leak Detector Service Kit
Robinair LD9-TGKIT
Your Price: $974.79
(image for) Nitrogen Flush Kit
Nitrogen Flush Kit
FJC 2711
Your Price: $121.53
(image for) Nitrogen Pressure Tester
Nitrogen Pressure Tester
FJC 2713
Your Price: $141.96
List Price: $269.99
47% off
(image for) Nitrogen/Hydrogen Electronic Leak Detection System
Nitrogen/Hydrogen Electronic Leak Detection System
FJC 5109
Your Price: $603.70
List Price: $949.99
36% off
(image for) 8 oz R-1234YF Refrigerant with
8 oz R-1234YF Refrigerant with
FJC 696UV
Your Price: $41.92
(image for) A/C Leak Testing Kit (R134a/R1234yf)
A/C Leak Testing Kit (R134a/R1234yf)
Mastercool 53551
Your Price: $472.68
List Price: $749.99
37% off