Sauermann Si-RM450 4-Way Manifold

Sauermann Si-RM450 Digital 4-Way Wireless HVAC Manifold Gauge

The Sauermann Si-RM450 is a professional-grade digital 4-way manifold gauge engineered for HVAC and refrigeration technicians performing commissioning, maintenance, diagnostics, evacuation, and refrigerant charging on heat pumps, air conditioning systems, refrigeration equipment, and reversible systems.

Designed for advanced field performance, the Si-RM450 combines wireless connectivity, intelligent diagnostics, and fast measurement technology to simplify troubleshooting and improve efficiency on residential, commercial, and industrial HVAC applications. Its rugged construction, anti-reflective graphical display, and smart assistant functionality make it ideal for demanding service environments and outdoor use.

Compatible with A1, A2L, A2, and A3 refrigerants, the Si-RM450 supports a wide range of modern refrigerants including R32, R410A, R134a, R404A, R407C, R290, R1234yf, and many more. The system integrates seamlessly with the Sauermann Pilot mobile app for wireless monitoring, data logging, diagnostics, and enhanced system analysis.

Built for complete HVAC diagnostics and refrigerant handling, the Si-RM450 delivers fast, accurate readings while supporting wireless probes, temperature clamps, vacuum measurement, hygrometry testing, and additional smart accessories.

Key Features

• Professional digital 4-way HVAC manifold gauge
• Designed for refrigerant handling, commissioning, maintenance, and diagnostics
• Compatible with A1, A2L, A2, and A3 refrigerants
• Wireless connectivity with Sauermann Pilot mobile app
• Smart digital assistant for guided troubleshooting
• Fast, comprehensive HVAC system diagnostics
• Durable anti-reflective glass screen for improved outdoor visibility
• High-speed NTC temperature sensors
• Rugged construction for demanding field use
• Supports pressure, temperature, vacuum, and hygrometry measurements
• Data logging and wireless probe integration
• Supplied in a durable hard plastic carrying case

Applications

• Heat pumps
• Air conditioning systems
• Refrigeration systems
• Commercial HVAC service
• Residential HVAC maintenance
• Refrigerant charging and evacuation
• HVAC commissioning and diagnostics
• Industrial refrigeration systems

Technical Specifications

• Manifold Type: Digital 4-Way Wireless HVAC Manifold
• Refrigerant Compatibility: A1 / A2L / A2 / A3
• Wireless Connectivity: Yes
• Display Type: Graphical digital display
• Temperature Sensors: High-speed NTC sensors
• Mobile App Compatibility: Sauermann Pilot App
• Power Supply: Battery powered
• Housing: Rugged portable construction
• Case Included: Yes – hard plastic carrying case

Included in the Kit

• Sauermann Si-RM450 Digital 4-Way Manifold
• Adjusting certificate
• Hard plastic carrying case

Compatible Accessories & Probes

• Si-RV4 Wireless Vacuum Probe
• Si-RP4 Wireless Pressure Probe
• Si-RT2 Wired Temperature Clamp
• Si-RT7 Wireless Temperature Clamp
• Si-RT5 Wired Temperature Probe for Large Diameter Pipe
• Si-TH4 Hygrometry / Temperature Probe
• Sauermann Pilot Mobile App Integration

Perfect for professional HVAC technicians looking for a high-performance wireless digital manifold gauge with advanced diagnostics, broad refrigerant compatibility, smart mobile app integration, and support for complete HVAC system analysis.

Technical Documents

• Technical Data Sheet
• User Manual
• Simplified Manual
• Product Brochure
• Manifolds

Warranty Information

Sauermann products are designed for professional HVAC and refrigeration applications and are backed by the manufacturer’s warranty against defects in materials and workmanship. Contact us for complete warranty details and product support information.