Gateway RSES is happy to announce a Cooperative training program with Mechanical Supply.


What Can Fieldpiece Do For You?


Empowering HVAC/R Techs: The RSES Mission
At the heart of our mission is a simple but powerful goal: empowering HVAC/R professionals through education and cutting-edge resources. In a field where technology evolves rapidly, staying informed isn’t just helpful—it’s essential. That’s why we share insights that elevate your expertise and help you perform at your best, every single day.
Fieldpiece instruments are designed to support your professional growth and help you meet—and exceed—industry standards. With tools that make your work easier, faster, and better, we’re not just enhancing your experience—we’re amplifying a community built on knowledge, skill, and innovation with the all new DRX3 and our full array of instruments.
Let’s grow together. Let’s lead the future of HVAC/R.
Write your text here...
You don't want to miss the new DRX3, ALL-In-One refrigerant & Combustable Gas leak detector!
Whether you're tracking down refrigerant leaks or combustible gases, the DRX3 is built to make your job easier, faster, and more precise. Here's what makes it a game-changer:
Detects A1, A2L, A3 refrigerants and combustible gases like natural gas, propane, butane, and methane
Heated diode sensor — accurate, field-replaceable, and built for longevity
Multiple sensitivity settings — high, medium, and low for tailored detection
Visual & audio feedback — flashing LED, loud alarm, and real-time display
Job Link® System App — connect for live readings, diagnostics, and reporting
ATEX Zone 2 & Class I, Division 2 compliant — safe for hazardous locations
Lighten your toolbag and level up your leak detection game with the DRX3. It’s not just a tool—it’s a performance upgrade.


When: November 6, 2025
Time: 4:00-6:00 PM
Where: Mechanical Supply Fenton
Pre Register Is Required...
Gateway RSES will Offer St Louis County PEU for this class.
RSES member $15.00
Non Member $30.00


Don’t Miss This Opportunity
Explore the Full Fieldpiece Lineup—Up Close and In Action
Join us for an exclusive look at the complete range of Fieldpiece instruments, designed to make your work easier, faster, and better. From advanced leak detectors like the DRX3 to precision digital manifolds, multimeters, and Job Link®-enabled tools—this is your chance to see how innovation meets real-world performance.
✅ Hands-on demos ✅ Expert insights ✅ Training resources ✅ Special offers
Whether you're a seasoned tech or just starting out, this deep dive into Fieldpiece’s lineup will elevate your skills and connect you with a community built on knowledge and growth.


“Stayin’ Alive: CPR Basics with a Beat”
Learn life-saving CPR techniques from certified instructors in a relaxed, hands-on environment. Whether you're refreshing your skills or learning for the first time, this training is essential for HVAC/R professionals and community members alike.


📍 Location
BS Bar & Grill
10471 St Charles Rock Road
St. Ann, MO 63047
(Ashby Plaza – Lower Level)
📅 Date & Time
Wednesday, November 12, @ 5:00 PM
🎟️ Registration
Space is limited—reserve your spot today! For tickets click below.
✅ What You’ll Gain
2 St louis County PEU's
Confidence to respond in emergencies
Practical, real-world instruction
Networking with fellow professionals
Still to come
Dec 4 Fieldpiece Combustion @ Mechanical Supply
Dec 17 Why IAQ
Jan 21 Start The Year With A Surge
Feb 18 LG
Watch for information on our Spring Conference coming soon.
