The Testo 557s hvac manifold is engineered for dependable performance in demanding industrial environments. As an authorised supplier, Instrusense India provides the Testo 557s with genuine product support, calibration guidance, and after-sales service across India.
Key Features
- Simultaneous high/low-side pressure measurement
- Integrated temperature measurement via clamp probes
- Refrigerant database for superheat/subcooling calculation
- Bluetooth/app connectivity on select models
- Rugged casing for field service use
Applications
- HVAC & refrigeration service and commissioning
- System charging & diagnostics
- Preventive maintenance
- Commercial refrigeration troubleshooting
- Chiller & AC plant servicing





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