Description
The Beckett AMI-1FM3 (SKU 5432) is a reliable inline moisture indicator designed to give HVAC technicians and refrigeration professionals a quick visual check of system moisture levels and refrigerant condition. With a 3/8″ female flare inlet and male flare outlet, this indicator installs easily into existing refrigerant lines without the need for special adapters.
Key Features
- Model: AMI-1FM3
- Connection type: 3/8″ female flare x 3/8″ male flare
- Maximum working pressure: 650 PSI
- Compatible with CFC, HCFC, and HFC refrigerants
- Color-changing moisture indicator window for at-a-glance system status
- Compact, inline design for easy installation in refrigerant liquid lines
Refrigerant Compatibility
The AMI-1FM3 is engineered to work across a broad range of refrigerant types, including older CFC and HCFC blends as well as modern HFC refrigerants. This versatility makes it a practical choice for service technicians working on diverse commercial and residential refrigeration systems.
Why Moisture Monitoring Matters
Excess moisture in a refrigerant circuit is a leading cause of acid formation, compressor damage, and system inefficiency. The Beckett AMI-1FM3 provides a continuous, visual indication of moisture presence, allowing technicians to take corrective action before costly damage occurs. Its 650 PSI maximum working pressure rating ensures safe operation across high-side and low-side applications in a wide variety of systems.
Installation & Application
- Designed for inline installation in refrigerant liquid lines
- 3/8″ flare connections ensure leak-free, tool-ready installation
- Suitable for commercial refrigeration, air conditioning, and heat pump systems
- Ideal for use during system commissioning, service, and preventive maintenance







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