Testo 6651 – Temperature/humidity transmitter

testo 6651- Temperature and humidity transmitter key features:

  • High system availability thanks to integrated self-monitoring and early warning
  • Ethernet, relay and analog outputs enable optimum integration into individual automation systems
  • P2A software for parametrization, adjustment and analysis saves time and money during commissioning and maintenance
  • High measuring accuracy thanks to reliable and long-term stable humidity sensor technology
SKU: 492

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Testo 6651 – Temperature/humidity transmitter

Order-Nr.  0555 6651

The testo 6651 transmitter for demanding measuring tasks: In combination with the testo 660x probe series, the transmitter can master exceptionally demanding measuring tasks in air conditioning technology and numerous other fields of application.

Testo 6651- Temperature and humidity transmitter Specifications:

  • Meas. range of humidity: 0 to 100 %RH
  • Units :Relative humidity %RH , °Ctd, °Ftd, g/m³
  • Meas. range: 0 to 100 %RH
  • Units: Temperature in °C / °F
  • Quantity: 2 channels
  • Output type :0/4 to 20 mA (2-wire/4-wire),0 to 1/5/10 V (4-wire)
  • Ethernet :Optional: module can be fitted as intermediary layer
  • Meas. range of Temperature: Dependent on probe (testo 660x)
  • Voltage supply: 2-wire: 24 VDC ±10 % / 4-wire: 20 to 30 VAC/DC
  • Current consumption: max. 300 mA
  • Material: Plastic
  • Dimensions: 122 x 162 x 77 mm (without probe)
  • Weight 0.675 kg (without probe, without Ethernet module)
  • Protection class: IP65
  • EMC: 2004/108/EG
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Testo is a world leader in the design, development, and manufacture of portable test and measurement instrumentation and solutions. Backed by 60 years of measuring engineering experience, our mission is to provide the best quality, service, and value in the industry. In addition, Testo is recognized as the leading worldwide manufacturer of portable combustion efficiency analyzers and air emission analyzers. Testo has become a major supplier of HVAC, critical HVAC, refrigeration, airflow, and environmental monitoring instruments for markets as diverse as chemical, food service and production, pharmaceutical and biotechnology, and residential HVAC suppliers.