testo 6651, temperature/humidity transmitter for critical environmental conditions

With the possibility of selecting analog signal outputs, optional display, optional Ethernet module, and optional relay (depending on configuration)

  • High-precision external Testo humidity probes with long-term stability (accuracy up to **±1.7 % RH** depending on the probe type)
  • The Ethernet module, relay, and analog outputs allow for optimal integration of the transmitter into individual automated systems
  • High-quality **digital probes** and the **intelligent calibration concept**
  • Self-monitoring and an **early warning function** ensure high system availability

testo 6651 temperature/humidity transmitter for critical environmental conditions, accuracy up to ±1.7 % RH (depends on the probe type), selectable analog signal outputs, optional display, optional Ethernet module, optional relays, external digital interface for adjustment and parameterization, 2 analog outputs.

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Description

The testo 6651 transmitter is suitable for stationary measurements in air conditioning systems for rooms (comfort level monitoring, museums, storage of hygroscopic materials, storage of electronic components) and for stationary measurements of industrial climate conditions (drying processes, food products, cheese ripening, fruit maturation, pasta drying, bio-research, mushroom cultivation).
System components are monitored using the instrument; commissioning, adjustment, and analysis are possible directly without the use of software (optional display/operation menu). Measured parameters, settings, and reports are stored in the device’s memory—with an hourly operation counter. The transmitter performs continuous self-monitoring.
Order Number 0555 6651