The Dwyer Instruments 421-23 is a high-precision digital manometer used to measure air and gas pressure with outstanding accuracy. It features a large, easy-to-read LCD display and is ideal for professionals in fields like HVAC, industrial maintenance, and laboratory work. This versatile instrument is suitable for a wide range of applications, from testing airflow to monitoring system performance.
Key Features:
High accuracy with ±0.25% full-scale precision
Large LCD display for easy readability
Wide measurement range from 0 to 200 inH2O (inches of water column)
Compact and portable design for convenient field use
Auto-off feature to conserve battery life
Simple push-button operation for quick measurements
Compatible Chemicals:
Air
Nitrogen
Non-corrosive gases
Included Accessories:
9V battery
User manual
Compliance:
ISO 9001
GLP compliant for laboratory use
Benefits for Lab Users: The Dwyer Instruments 421-23 ensures consistent, reliable pressure readings that are essential for research and experiments. Its compact size and portability make it easy to carry, while its user-friendly interface reduces training time. With its precise measurements and durable construction, it’s the ideal choice for accurate lab pressure monitoring.




