
McCally Tools JC-5361 Test Probe
For technicians performing system diagnostics and terminal unit balancing, the McCally Tools JC-5361 Test Probe is a purpose-built assembly engineered for high-precision pneumatic pressure testing. This pneumatic test probe assembly features two specialized hypodermic needles, allowing for seamless insertion into P/T ports and pneumatic lines without compromising system integrity. The included 6-inch flexible hose provides the necessary clearance to access tightly packed HVAC control systems and instrumentation panels. Whether you are troubleshooting VAV box controllers or verifying differential pressure across coils, the JC-5361 delivers the repeatability required for professional commissioning. Its durable construction ensures it stands up to the rigors of field use, providing a reliable interface between your gauges and the system. This assembly is a critical addition to any balancing tool kit, streamlining the process of obtaining accurate static and velocity pressure readings during routine maintenance or complex system startups.
Key Benefits for Technicians
- Enhanced Accessibility: The 6-inch lead hose allows for easy connection in confined mechanical spaces where direct gauge mounting is impossible.
- Precision Diagnostics: Dual hypodermic needles facilitate rapid pressure drop testing across pneumatic components for faster troubleshooting.
- Universal Compatibility: Designed to interface with standard pneumatic test ports found on major commercial HVAC equipment brands.
- Professional Grade Durability: Built to withstand industrial environments, ensuring consistent airflow measurement accuracy over long-term field service.
Common Technical Questions
How do the hypodermic needles prevent air leakage during testing?
The McCally Tools JC-5361 utilizes thin-wall needles designed to penetrate port seals cleanly, allowing the seal to re-close upon removal to maintain pneumatic system pressure.
Can this probe be used for both positive and negative pressure readings?
Yes, the assembly is suitable for comprehensive static pressure diagnostics, including supply, return, and ambient readings in pneumatic control circuits.
What is the primary application for the 6-inch hose extension?
The hose acts as a flexible coupler, protecting the test probe needles from lateral stress and providing better ergonomics when using digital or analog monometers.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
McCally Tools JC-5361 Test Probe
For technicians performing system diagnostics and terminal unit balancing, the McCally Tools JC-5361 Test Probe is a purpose-built assembly engineered for high-precision pneumatic pressure testing. This pneumatic test probe assembly features two specialized hypodermic needles, allowing for seamless insertion into P/T ports and pneumatic lines without compromising system integrity. The included 6-inch flexible hose provides the necessary clearance to access tightly packed HVAC control systems and instrumentation panels. Whether you are troubleshooting VAV box controllers or verifying differential pressure across coils, the JC-5361 delivers the repeatability required for professional commissioning. Its durable construction ensures it stands up to the rigors of field use, providing a reliable interface between your gauges and the system. This assembly is a critical addition to any balancing tool kit, streamlining the process of obtaining accurate static and velocity pressure readings during routine maintenance or complex system startups.
Key Benefits for Technicians
- Enhanced Accessibility: The 6-inch lead hose allows for easy connection in confined mechanical spaces where direct gauge mounting is impossible.
- Precision Diagnostics: Dual hypodermic needles facilitate rapid pressure drop testing across pneumatic components for faster troubleshooting.
- Universal Compatibility: Designed to interface with standard pneumatic test ports found on major commercial HVAC equipment brands.
- Professional Grade Durability: Built to withstand industrial environments, ensuring consistent airflow measurement accuracy over long-term field service.
Common Technical Questions
How do the hypodermic needles prevent air leakage during testing?
The McCally Tools JC-5361 utilizes thin-wall needles designed to penetrate port seals cleanly, allowing the seal to re-close upon removal to maintain pneumatic system pressure.
Can this probe be used for both positive and negative pressure readings?
Yes, the assembly is suitable for comprehensive static pressure diagnostics, including supply, return, and ambient readings in pneumatic control circuits.
What is the primary application for the 6-inch hose extension?
The hose acts as a flexible coupler, protecting the test probe needles from lateral stress and providing better ergonomics when using digital or analog monometers.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
For technicians performing system diagnostics and terminal unit balancing, the McCally Tools JC-5361 Test Probe is a purpose-built assembly engineered for high-precision pneumatic pressure testing. This pneumatic test probe assembly features two specialized hypodermic needles, allowing for seamless insertion into P/T ports and pneumatic lines without compromising system integrity. The included 6-inch flexible hose provides the necessary clearance to access tightly packed HVAC control systems and instrumentation panels. Whether you are troubleshooting VAV box controllers or verifying differential pressure across coils, the JC-5361 delivers the repeatability required for professional commissioning. Its durable construction ensures it stands up to the rigors of field use, providing a reliable interface between your gauges and the system. This assembly is a critical addition to any balancing tool kit, streamlining the process of obtaining accurate static and velocity pressure readings during routine maintenance or complex system startups.
Key Benefits for Technicians
- Enhanced Accessibility: The 6-inch lead hose allows for easy connection in confined mechanical spaces where direct gauge mounting is impossible.
- Precision Diagnostics: Dual hypodermic needles facilitate rapid pressure drop testing across pneumatic components for faster troubleshooting.
- Universal Compatibility: Designed to interface with standard pneumatic test ports found on major commercial HVAC equipment brands.
- Professional Grade Durability: Built to withstand industrial environments, ensuring consistent airflow measurement accuracy over long-term field service.
Common Technical Questions
How do the hypodermic needles prevent air leakage during testing?
The McCally Tools JC-5361 utilizes thin-wall needles designed to penetrate port seals cleanly, allowing the seal to re-close upon removal to maintain pneumatic system pressure.
Can this probe be used for both positive and negative pressure readings?
Yes, the assembly is suitable for comprehensive static pressure diagnostics, including supply, return, and ambient readings in pneumatic control circuits.
What is the primary application for the 6-inch hose extension?
The hose acts as a flexible coupler, protecting the test probe needles from lateral stress and providing better ergonomics when using digital or analog monometers.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

