Dwyer Instruments AQH-20 | Handheld indoor air quality meter
Genuine Dwyer Instruments AQH-20 handheld indoor air quality meter in stock at General Tech Services LLC, Saudi Arabia, with free Saudi Arabia shipping. The AQH-20 measures CO2, temperature and relative humidity simultaneously on a backlit LCD. Request a quote in under a minute – call +966 569 289 544.
Product Overview
The Dwyer AQH-20 is a handheld indoor air quality meter designed to measure carbon dioxide, temperature and relative humidity at the same time. Its non-dispersive infrared (NDIR) sensor measures CO2 from 0 to 2000 ppm, helping users assess ventilation conditions in occupied indoor spaces.
Temperature measurement covers -10 to 60°C, while relative humidity is measured from 0.0 to 99.9% RH. All three readings are displayed together on the backlit LCD, making the meter practical for room-by-room surveys and inspections in areas where lighting may be limited.
The AQH-20 provides customizable user alarms, allowing users to set limits for monitored readings and quickly identify areas requiring further investigation. CO2 response is under 30 seconds, temperature response is under 2 minutes, and humidity response is under 10 minutes.
The handheld meter operates from four AA alkaline batteries, which are included. A carrying case is also supplied for convenient transport between inspection locations. With a weight of only 200 g and an operating temperature range of 0 to 50°C, the AQH-20 is suited to portable indoor air quality checks in offices, classrooms, healthcare facilities, hotels and other occupied buildings.
Key Benefits
- Measures CO2, temperature and relative humidity simultaneously
- NDIR CO2 sensing with a 0-2000 ppm measurement range
- Backlit LCD displays the measured values clearly
- Customizable alarms help identify readings outside preferred limits
- CO2 response time of less than 30 seconds
- Four AA alkaline batteries and carrying case included
- Lightweight 200 g handheld design
- CE approved for applicable use requirements
- Genuine Dwyer stock with free Saudi Arabia shipping
Who This Product Is Best For
- Facility managers checking ventilation conditions in offices, classrooms and commercial buildings
- HVAC engineers verifying indoor conditions during commissioning and maintenance
- IAQ consultants conducting portable indoor air quality surveys
- Schools, clinics and hotels investigating temperature, humidity and ventilation complaints
- Maintenance teams checking indoor humidity and environmental conditions around HVAC equipment
How to Use / How It Works
- Insert the four supplied AA alkaline batteries and switch on the AQH-20.
- Configure the preferred alarm limits for CO2, temperature and humidity.
- Position the meter in the breathing zone or the area being surveyed and allow the readings to stabilize.
- Record the readings from room to room and investigate locations where measurements reach the configured alarm limits.
The CO2 measurement uses NDIR sensing, while dedicated temperature and humidity measurement provides the additional environmental readings needed for a basic indoor air quality assessment.
Frequently Asked Questions
What does the Dwyer AQH-20 measure?
The AQH-20 measures carbon dioxide (CO2), air temperature and relative humidity simultaneously.
What is the CO2 measurement range?
The CO2 range is 0 to 2000 ppm, with an accuracy of ±30 ppm ±5% of reading.
What type of CO2 sensor does the AQH-20 use?
It uses a non-dispersive infrared (NDIR) sensor for CO2 measurement.
What are the temperature and humidity ranges?
Temperature is measured from -10 to 60°C (14 to 140°F), while relative humidity is measured from 0.0 to 99.9% RH.
How quickly does the meter respond?
CO2 response is under 30 seconds, temperature response is under 2 minutes, and humidity response is under 10 minutes.
Are batteries included with the AQH-20?
Yes. Four 1.5 V AA alkaline batteries are included with the meter, along with a carrying case.
Can I set alarm limits?
Yes. The AQH-20 provides customizable user alarms for its measured readings.
What is the display type?
The meter uses a backlit LCD with four-digit temperature/CO2 readings and a three-digit relative humidity display.
Request a Quote Today
Get the genuine Dwyer AQH-20 handheld indoor air quality meter with free shipping anywhere in Saudi Arabia.
General Tech Services LLC — Genuine Dwyer Products, KSA
Call +966 569 289 544 | www.generaltechshop.sa
