Description
Product Overview
The AIOMEST AI-189A digital manometer is a precision handheld gauge engineered to measure differential, positive, and negative pressure with a range of ±2 psi or ±13.79 kPa and an accuracy of ±0.3% FS. It features 11 selectable measurement units, a compact design weighing 134g with dimensions of 160x62x31mm, and a large backlit LCD screen for clear readings in various lighting conditions. Constructed with durable materials, this manometer includes dual ports for versatile pressure testing, making it suitable for industrial and scientific applications. Key specifications include product dimensions of 2.44 x 1.22 x 6.3 inches, a weight of 8.15 ounces, and a manufacture date of March 9, 2023, ensuring reliability and ease of use in demanding environments.

Usage
This digital manometer is ideal for HVAC professionals, technicians, and industrial workers who require accurate pressure measurements in fields such as heating, ventilation, air conditioning, and gas system maintenance. It can be used in environments like repair shops, construction sites, and laboratories to test gas valve pressures, monitor differential pressures in ducts, and ensure system efficiency. The handheld design and portability make it perfect for on-site diagnostics, allowing users to quickly assess pressure levels, troubleshoot issues, and maintain optimal performance in various mechanical systems.
Why Choose Us
AIOMEST stands out with its commitment to quality and precision, offering a manometer that combines advanced functionality with user-friendly features. The product boasts a high accuracy rate of ±0.3% FS, data storage capabilities for tracking max, min, and average readings, and a robust construction that withstands regular use. Backed by a 365-day warranty, it includes essential accessories like flexible tubes and adapters, ensuring seamless integration into your workflow. This focus on durability, ease of use, and comprehensive support provides a competitive edge, making it a reliable choice for professionals seeking dependable pressure measurement tools.
Key Features
- Measures differential, positive, and negative pressure with ±0.3% FS accuracy for reliable results.
- Dual port design allows simultaneous testing of positive and negative pressures, enhancing versatility.
- Data storage function records and reviews max, min, and average pressure data for analysis.
- Large backlit LCD screen ensures clear visibility in low-light conditions, improving usability.
- Includes 4 flexible tubes and a 1/8” thread adapter for easy and secure pressure connections.
FAQ
What types of pressure can this manometer measure?
It measures differential, positive, and negative pressure up to ±2 psi or ±13.79 kPa, covering a wide range of applications in HVAC and industrial settings.
How do I zero out the device for accurate readings?
Long-press the HOLD button for 5 seconds to clear any remaining data, ensuring precise measurements from a clean start.
Is the manometer portable for field use?
Yes, it weighs only 134g and has a compact design of 160x62x31mm, making it easy to carry and use on the go with the included portable case.
What accessories are included with the purchase?
The package contains 4 flexible tubes, a 1/8” thread adapter for quick connections, and a protective case to safeguard the device during transport and storage.
Does it come with a warranty?
Yes, AIOMEST provides a 365-day quality warranty, offering peace of mind and support for any manufacturing defects or issues.




Reviews
There are no reviews yet.