Monitor Your HVACLike a Pro
Real-time temperature monitoring that tells you instantly if your system is healthy — or needs attention.
The Secret HVAC Pros Check First
It's called ΔT (Delta T) — and it tells you everything
What Your ΔT Means
AirMD+ calculates this for you automatically — and alerts you if something's off.
Know Exactly How Your System Is Performing
AirMD+ gives you the same data HVAC professionals use — right on your phone.
- ✓Real-time temperature monitoring
See supply and return air temps instantly. Know if your system is actually cooling or heating properly.
- ✓ΔT health indicator
The #1 metric HVAC pros check. A healthy AC should have 15-20°F difference. AirMD+ tells you instantly.
- ✓AI-powered insights
Not sure what the numbers mean? AI analyzes your data and tells you in plain English if there's a problem.
- ✓Catch problems early
See trends over time. Spot declining performance before it becomes a breakdown.
Everything You Need
In One Box
Pre-assembled, pre-loaded, ready to go. No soldering, no coding, no technical skills required.
Ships in a durable 3D-printed enclosure with two stainless steel temperature probes
AirMD+ Monitoring Kit
What's in the box:
- ✓ AirMD+ controller (ESP32-based)
- ✓ 2x stainless steel temperature probes
- ✓ USB-C power cable
- ✓ Mounting tape
- ✓ Quick start guide
Simple Installation
Mount directly on your HVAC system or nearby. The flexible probe cables reach your supply and return vents easily. No tools, no modifications to your system.
AirMD+ vs. Calling an HVAC Tech
Up and Running in 5 Minutes
Plug In
Connect the USB-C cable to any USB power source. The LED lights up when ready.
Connect
Open the AirMD+ app and follow the simple WiFi setup wizard.
Place Sensors
Attach one probe to a supply vent, one near the return. Use the included tape.
Monitor
That's it! Watch your temps in real-time and get AI insights.
See It In Action
Tap to enlarge
Simple App Pricing
The app is free to use. Premium unlocks advanced features.
Free
$0
- ✓ Live temperature readings
- ✓ ΔT calculation
- ✓ System status detection
- ✓ 24-hour history
Premium
$1.99/month
or $19.99/year (save 17%)
- ✓ Everything in Free
- ✓ AI performance analysis
- ✓ AI equipment scanner
- ✓ Unlimited history
- ✓ Smart alerts
- ✓ Filter reminders
3-day free trial • Cancel anytime
Frequently Asked Questions
Want to Build Your Own?
For makers and tinkerers who want to source parts and flash firmware themselves
Ready to Know If Your HVAC Is Healthy?
Join homeowners who've stopped guessing and started monitoring.
30-day money-back guarantee. Free US shipping.
Or download the free app first →