Labor Day Sale | Up to 60% Off + Free Gift →
Excellent 4.8 | 2,137 reviews

HorseThera™ Smart Stall Air Monitor

$119.95 $79.95 SAVE $40

Track invisible ammonia, microscopic hay dust, and poor ventilation 24/7. Get real-time alerts straight to your smartphone before Equine Asthma starts.

🎁 Free Summer Sale Gift with Every Order 🎁
Free Gift
🎁 Free Summer Sale Gift included
🚨 8 left in stock - order soon.
User User User User
Join Jessica L. and over 4,500 equestrians who trust HorseThera.
  • American Express
  • Apple Pay
  • Bancontact
  • BLIK
  • Google Pay
  • iDEAL Wero
  • Klarna
  • Maestro
  • Mastercard
  • MobilePay
  • Shop Pay
  • Union Pay
  • Visa
Free Tracked
Shipping
& Easy Returns
30 Day Money-
Back Guarantee
Reviewer

"I had no idea how much invisible ammonia was building up at night. Within a week of using this monitor and adjusting our ventilation, my gelding's cough completely disappeared."

Sarah T., Barn Manager
Description

Your barn camera tells you if your horse is standing up. But does it tell you what they are breathing?

Invisible ammonia from urine and microscopic hay dust are the #1 cause of Equine Asthma (Heaves). Protect your horse's lungs with the HorseThera™ Smart Stall Air Monitor.

  • TVOC (Ammonia Gas) Sensor: Detects harmful stall gases before you can smell them.
  • PM2.5 & PM10 Tracking: Measures microscopic hay, bedding, and arena dust.
  • CO2 & Ventilation: Know instantly if your barn is closed up too tight.
  • Temperature & Humidity: Prevent mold growth in bedding and track heat stress.

24/7 Smart Alerts: Connects to your barn's WiFi to send push notifications directly to your smartphone via the free app. Sleep soundly knowing your horse's environment is safe.

Recommended Use

Setup is incredibly simple:

  1. Place or mount the monitor in your horse's stall, safely out of reach of their mouth (do not let them chew on the cord).
  2. Leave it plugged in via the included USB cable for continuous 24/7 monitoring. (It does have a built-in battery for quick, cordless spot-checks around the barn).
  3. Connect the monitor to your barn's 2.4GHz WiFi network using the free smart app (iOS/Android).
  4. Set your custom alert thresholds for Ammonia (TVOC), Dust (PM2.5), and Temperature.
Full Features & Specifications

Advanced Feature Set:

  • 8-in-1 Detection: Accurately measures PM1.0, PM2.5, PM10, CO2, TVOC (Ammonia/Gases), HCHO, Temperature, and Humidity simultaneously.
  • High-Precision Sensors: Equipped with an NDIR infrared CO2 sensor, laser particle sensor, and semiconductor sensors for maximum interference resistance.
  • Smart LCD Color Display: Automatically adjusts brightness based on the room's lighting so it is never too harsh in a dark barn.
  • Motion-Sensing Wake-Up: The screen automatically sleeps after 30 seconds to save power, but continues sending data to the cloud via WiFi. Simply wave your hand in front of the device to wake the screen instantly.
  • Customizable Alarms: Use the Tuya App to set specific warning alarms for PM2.5 and CO2 levels.
  • AQI Color Indicators: The screen changes color based on the Air Quality Index, giving you a graphic warning at a glance.
  • Auto-Calibration: Calibrates automatically after 24 hours of continuous power-on for ultimate accuracy.

Technical Specifications:

  • Battery: Built-in 350mAh lithium battery (for spot-checks). USB Type-C included for 24/7 continuous power.
  • Charging: USB Type-C, 5V 2A
  • CO2 Range: 400-5000 PPM
  • PM2.5 Range: 0-1000 µg/m³
  • TVOC Range: 0-9.999 mg/m³
  • Temperature Range: 0-50℃ (Switchable to ℉ in App)
  • Dimensions: 70 x 84 x 35mm (2.76" x 3.31" x 1.38")
  • Weight: 209g
  • Certifications: CE & FCC Certified for international safety

What's Included in the Box:

  • 1 x Smart Air Quality Monitor
  • 1 x USB Type-C Charging Cable
  • 1 x User Guideline & Setup Manual
30-Day Money-Back Guarantee

Shop with confidence. If you or your horse are not completely satisfied with the HorseThera Smart Stall Air Monitor, you can return it within 30 days of receiving your order for a full refund.

Shipping & Returns

Orders are processed within 24 hours. We offer DHL Express Tracked Shipping, which typically takes 3-5 business days. Returns are easy through our support portal.

Free Shipping
DHL Express Tracked Shipping
Money Guarantee
Within 30 days for an exchange.
Easy Returns
Simply return it to us within 30 days.
Customer Service
Questions? We are here for you every day.
30-Day Money-Back Guarantee Free Tracked Shipping 30-Day Money-Back Guarantee Free Tracked Shipping

What Makes Us Different

Standard indoor air monitors are not built for the realities of a horse barn. The HorseThera™ Smart Stall Air Monitor is specifically engineered to detect the heavy ammonia gases and microscopic hay dust that cause Equine Asthma, all while sending real-time alerts directly to your phone.

Us
Them
Detects Invisible Ammonia
Tracks Hay Dust (PM2.5)
24/7 Phone Alerts
Auto-Dimming Screen
Built for Stall Environments
30-Day Guarantee

3 Hidden Threats In Your Barn (And How To Stop Them)

Your horse cannot tell you when the air hurts to breathe. Even if a stall smells clean to you, the air at the floor level where they sleep can be toxic. Here is what the Smart Stall Air Monitor protects against:

Ammonia in Stables
Threat #1

Invisible Ammonia Gas

Ammonia from urine is highly caustic and severely damages the respiratory tract. Because it is heavier than air, it pools at the floor level where your horse eats and sleeps. The TVOC Sensor detects ammonia spikes before human noses can.

Hay Dust
Threat #2

Microscopic Hay & Bedding Dust

Not all dust is visible. The microscopic particulate matter (PM2.5) from hay and wood shavings is what gets trapped deep in the lungs, triggering Equine Asthma and Heaves. The PM2.5 Sensor tells you exactly when it's time to wet down the stall.

WiFi App Alerts
The Solution

24/7 Mobile App Alerts

You can't be at the barn 24 hours a day, but the Smart Monitor can. Connect it to your barn's WiFi and get instant push notifications to your phone if the temperature, humidity, or air quality enters the danger zone while you are sleeping.

2,137 Reviews
Customer review photo
Ally P Verified
26/08/2026

I consider myself a neat freak. My stalls are mucked twice a day. So when I plugged this in and the ammonia alarm went off on my phone at 4 AM, I was shocked. Turns out closing the barn doors at night traps everything. My horse's breathing is so much better now.

Customer review photo
Andrea J Verified
26/08/2026

My 18-year-old warmblood has struggled with heaves for three years. Since getting this, I realized our round bale hay was causing massive PM2.5 dust spikes. Switched to soaked hay and tracking it with this—he hasn't coughed in weeks.

Customer review photo
Belinda B Verified
26/08/2026

I bought this to spy on my boarding barn! 😂 Honestly, I was worried they weren't cleaning my mare's stall well enough. The data proved the ammonia was fine, but the dust was high. Now they wet her shavings. Total peace of mind!

Customer review photo
Cecilia T Verified
26/08/2026

We had a scary heatwave last week. Being able to check the exact stall temperature and humidity from my phone while I was stuck in the office was incredible. I texted my barn manager to turn the fans on when it hit 85 degrees.