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- Anemometers
- Angle Finders & Inclinometers
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- Cable Testers & Finders
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- Depth Gauges
- Digital Scales
- Distance Meters
- Durometers / Hardness Meters
- EMF / RF / ELF / Solar / Gauss Meters
- Frequency Counters
- Gloss Meters & Accessories
- Hygrometers / Humidity Meters
- Leak Detectors
- Lux / Light Meters
- Manometers
- Moisture Meters
- Multimeters
- Radiation / Gamma Meters
- Solar Meters
- Sound Level Meters / Calibrators
- Stroboscopes
- Surface Roughness Testers
- Tachometers
- Thermometers
- Thickness Gauges / Coating
- Ultrasonic Flaw Detectors
- Ultrasonic Transmitters
- Vibration Meters
- Weather Stations
- Whiteness Meters
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- Automotive Diagnosis Testers
- Battery Testers
- Brake Fluid Testers
- Car Data Savers
- Coating / Paint Thickness Meters
- Electronic Stethoscopes
- Force Meters
- Gloss Meters
- Hardness Testers
- Injector Testers
- Inspection Cameras / Endoscopes / Borescopes
- Mechanic's Stethoscopes
- Multimeters
- Stroboscope
- Tachometers
- Tint Meters
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- Blood Pressure / Heart Rate Monitors
- Body Fat Calipers
- Body Surface / Forehead Thermometers
- Dental Loupes & LED Head Lights / Lamps
- GPS Receivers / Smart Trackers
- Heat Stress / WBGT Meters
- Mosquito & Pest Repellers
- Music Punching Machines
- Nebulizers
- Skin Moisture Analyzers
- Sound / White Noise Machines
- Ultrasonic Cleaners
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Phone Number (UK)(+44) 020 3286 9086
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- Air Quality Meters
- AQM-422 IAQ Monitor 5 in 1 Professional HCHO | CO2 | TVOC Meter with Humidity & Temperature Measurement NDIR Sensor Portable Carbon Dioxide Monitor for Home, RV, Grow Tents, Factory etc. AQM-422 IAQ Monitor 5 in 1 Professional HCHO | CO2 | TVOC Meter with Humidity & Temperature Measurement NDIR Sensor Portable Carbon Dioxide Monitor for Home, RV, Grow Tents, Factory etc.
AQM-422 IAQ Monitor 5 in 1 Professional HCHO | CO2 | TVOC Meter with Humidity & Temperature Measurement NDIR Sensor Portable Carbon Dioxide Monitor for Home, RV, Grow Tents, Factory etc.
- Description
- Return, Refund, & Warranty Policy
- Reviews
Minimum Order Quantity (MOQ) : 10 pieces
For inquiries and orders, e-mail us through sales@gainexpress.com or message us via our chatbot
Ensure a safer and healthier environment with our state-of-the-art Air Quality Meter. This versatile device offers multiple parameter measurements, including:
‒ HCHO (Formaldehyde) Levels
‒ TVOC (Total Volatile Organic Compounds)
‒ CO2 Concentration
‒ Temperature
‒ Humidity
It has a rear air vent design that optimizes airflow for accurate readings. Easy-to-read color-coded display for CO2, HCHO, and TVOC levels. Plus, it alerts you immediately when formaldehyde levels are high, ensuring safety. Perfect for homes, offices, schools, and industrial settings, our Air Quality Meter helps you maintain optimal air quality with ease. Breathe easy knowing you're in a healthy environment.
Features:
- Multiple parameter measurements (HCHO, TVOC, CO2, Temperature, and Humidity)
- Audible HCHO alarm
- Large LCD screen
- Battery strength indicator
- Switchable temperature unit
- Power saving mode function
- Rear air vent design
- Color indicator for CO2, HCHO and TVOC measurement
- Formaldehyde (HCHO)
- Green: concentration <0.080mg/m³ within standard limit
- Yellow: <0.080 ≤ formaldehyde concentration <0.300mg/m³ slightly exceed the standard
- Red: concentration ≥0.300mg/m³ exceed the standard limit
- Total Volatile Organic Compounds (TVOC)
- Green: TVOC concentration ≤0.45mg/m³ within standard limit
- Red: TVOC concentration >0.45mg/m³ exceed the standard limit
- Carbon Dioxide (CO2)
- Green: CO2 levels between 400~1000PPM within the standard limit
- Yellow: CO2 levels between 1001~1999PPM slightly exceed the standard
- Red: CO2 levels between 2000~5000PPM exceed the standard limit
- Green: CO2 levels between 400~1000PPM within the standard limit
- Formaldehyde (HCHO)
Specifications:
| Formaldehyde (HCHO) | Total Volatile Organic Compounds (TVOC) | Carbon Dioxide (CO2) | Temperature | Humidity | |
| Range | 0.000~5.000 mg/m³ | 0.000~9.99mg/m³ | 400~5000ppm | -20 to 40°C / -4°F to 104°F | 20 to 99% |
| Sensor | Advanced Gas Electrochemical Sensor | Advanced Gas Electrochemical Sensor | Infrared NDIR Sensor | - | - |
| Collection Method | Diffusion Collection | Diffusion Collection | Infrared Collection | - | - |
- Battery Capacity: 2500mAh polymer lithium battery
- Charging Method: DC5V Type-C interface
- Input Specification: 5.0V / 1000mA
- Charging Temperature: 10~40°C/14~104 °F
- Item Dimension: 15.6 x 4 x 8.8cm (6.1 x 1.6 x 3.5in)
Set Includes
- 1 x 5-in1 Air Quality Monitor
- 1 x USB Type-C Cable
- English Instruction Manual
- Standard Factory Packaging
Unhappy with your item?
If you are dissatisfied with your purchase, you may return it to us within THIRTY (30) DAYS from the purchase date subject to conditions below. Report or contact us for claims on missing items or parts, items damaged in transit, and incorrect item delivery within 2 business days upon receipt of item.
Refund & Credit
Refunds for the returned item will be issued in the same payment form used at the time of purchase. Once we receive and inspect the product, we will credit the amount to your account. Please allow 5-7 days for the credit to appear on your account.
Exchange
If the item was sent back for an exchange, please allow 3-5 business days for the replacement to be processed. The buyer will shoulder the return cost when returning an item for an exchange.
Wrong Item Received
If you received the wrong item, you may exchange it for the correct item or return it for a full refund.
Conditions
Please read all conditions below. If conditions are not met, Gain Express Holdings Ltd. reserves the right to refuse the return or to charge a restocking fee not less than 15%.
All returned or exchanged items must be in new condition and in their original box.We may refuse your return or refund request if:
- The item(s) is returned without an RMA form
- The item(s) has no valid, readable serial number (if any), inluding but not limited to items with missing, damaged, altered, or unreadable serial numbers
- The item(s) was returned without all original packaging and accessories, including the retail box, manuals, cables and all other accessories originally included with the item(s)
- The item(s) exhibits physical damages or is dirty
Returns must be done within THIRTY (30) DAYS after the purchased item has been received (unless specified) for replacement or full/partial refund, depending on what is agreeable to both parties.
Returning an Item
All returned items must be in good condition with complete original packaging and accessories. We reserve the right to charge a handling fee on all items returned to us for non-quality issues.
To Return Item(s):
-
Fill out the RMA (Return Merchandise Authorization) form and submit for our review. Once we have authorized your return request via e-mail, then proceed to step.
-
Pack your item(s) inside a shipping box. Please write Order ID # on a piece of paper and include it inside the box.
(Please do not place stickers or shipping labels on the original manufacturer's package.) -
Ship your item(s) to a warehouse near you.
(We recommend you ship via insured ground service with a tracking number. Return shipping charges is the buyer's responsibility. Gain Express Holdings Ltd. will bear the shipping cost of the replacement. We are not responsible for lost or damaged packages.)
We will take care of the rest for you!
Once our Returns Department has received and inspected your return, your refund or exchange will be processed right away.
Warranty
Replacement Warranty
Returns must be done within THIRTY (30) DAYS after receiving the purchased item (unless specified) for replacement or full/partial refund, depending on what is agreeable to both parties.
Product Service Warranty
All our items come with ONE (1) YEAR warranty for manufacturer defects. It does not include damage caused by misuse, accidents, abuse, alterations, neglect or other external causes.
The warranty will not extend to consumables (i.e. electrodes, calibration solution, battery, index oil), accessories, cable, compact disk and/or any written document bundled with the item.