Temperature and humidity transmitter Testo 6651 for critical climates

Datasheet PDF | Instruction Manual PDF

Description

The high-performance Testo 6651 temperature and humidity transmitter is engineered specifically for demanding industrial processes and critical climate monitoring. Designed to work seamlessly with the interchangeable digital Testo 660x probe series, it guarantees continuous trace precision and excellent system reliability. The instrument features smart integrated self-monitoring and early warning alerts to secure high system availability. With modular output options including Ethernet, relays, and scalable analog loops, it fits perfectly into smart facility management. Field diagnostics are simplified via an optional 2-line display or the advanced P2A software for prompt parameterization.

Industry Applications

• Critical Storage Logistics: Continuous microclimate logging inside high-tech cleanrooms, pharmaceutical archives, and hygroscopic raw material warehouses.
• Food Ripening & Processing: Precision monitoring of sensitive ambient profiles required for cheese, fruit, and meat maturation cycles.
• High-Value Asset Preservation: Safeguarding historic museum collections and structural electronic components against humidity-driven degradation.

Technical Parameters

• Measurement Capabilities: Air temperature and relative humidity (probe dependent)
• System Probe Compatibility: Digital Testo 660x probe line (smart hot-swap design)
• Measurement Accuracy: Up to +-1.7 %RH (probe model dependent)
• Communication Interfaces: Standard scalable analog loops; optional Ethernet module and integrated switching relays
• Diagnostics and Calibration: Self-checking algorithms, localized 1-point/2-point data tuning via P2A software
• Housing Material & Protection: Rugged plastic housing with water jet protection certified under IP65
• Local Interface Option: Available with or without an integrated 2-line backlit LCD screen

Package Content

• Testo 6651 industrial climate transmitter
• Calibration protocol

Note: A connectable Testo 660x digital probe is strictly required to commission this transmitter (available separately).