The Testo 400 indoor air quality meter is engineered for dependable performance in demanding industrial environments. As an authorised supplier, Instrusense India provides the Testo 400 with genuine product support, calibration guidance, and after-sales service across India.
Key Features
- Multi-parameter air quality measurement (CO2/temp/humidity)
- Data logging for compliance and trend analysis
- Clear digital display with alarm thresholds
- Compact, easy-to-deploy design
- Optional additional probe compatibility
Applications
- Indoor air quality assessment
- HVAC commissioning & ventilation checks
- Workplace comfort & compliance monitoring
- Building diagnostics
- Cleanroom & controlled-environment monitoring





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