testo 6742, compressed air counter, diameter DN25 (1”), with analog, pulse, and switching output

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  testo 6621, humidity transmitter for air conditioning systems

  testo 6621 in wall or duct version, with selectable analog signal outputs, incl. two-line display (option), external interface for adjustment and commissioning, two analog outputs

  • Transmitter with two analog outputs (temperature/humidity)
  • High-precision Testo humidity sensor with long-term stability
  • Adjustment without dismounting the transmitter
  • P2A software for parameterization, adjustment, and analysis

  testo 6621 temperature/humidity transmitter, accuracy ±2.0 % RH, wall or duct version, selectable analog signal outputs, optional display, external digital interface for adjustment and parameterization, 2 analog outputs

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  testo 6381, differential pressure transmitter

  Calculates volumetric flow and flow velocity parameters, with optional humidity and temperature measurement, selectable measuring ranges from 10 Pa to 1000 hPa, selectable analog signal outputs, and optional display (depending on configuration).

  • Automatic zero point adjustment guarantees high accuracy independent of temperature and long-term stability
  • The low measuring range from 10 Pa ensures the highest accuracy for low pressure measurement
  • Transmitter for measuring differential pressure, flow velocity, and volumetric flow, as well as, optionally, humidity and temperature
  • Signal alarm function configuration: possibility to set signal delay and select the alarm acknowledgment type

  testo 6381 differential pressure transmitter with flow velocity calculation function and optionally with temperature/humidity measurement function, accuracy ±0.5% of measuring range, automatic “zero point” adjustment, selectable measuring ranges from 10 Pa to 1000 hPa, selectable analog signal outputs, external digital interface for adjustment and parameterization, optional display, data output in all pressure, flow, and humidity units.

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  testo 6383, differential pressure transmitter

  testo 6383 for cleanroom applications, with optional humidity and temperature measurement, selectable measuring ranges from 10 Pa to 10 hPa, selectable analog signal outputs, and optional display (depending on configuration)

  • The flat housing allows for flush mounting on the cleanroom wall
  • The low measuring range from 10 Pa ensures the highest accuracy for low pressure measurement
  • Transmitter for measuring differential pressure, as well as, optionally, humidity and temperature
  • Automatic zero point adjustment guarantees high accuracy independent of temperature and long-term stability

  testo 6383 differential pressure transmitter for cleanroom applications (panel mounting), optionally with temperature/humidity measurement function, accuracy ±0.3% of measuring range, automatic “zero point” adjustment, selectable measuring ranges from 10 Pa to 10 hPa, selectable analog signal outputs, external digital interface for adjustment and parameterization, display, data output in all pressure and humidity units.

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  testo 6681, temperature/humidity transmitter

  testo 6681 with the possibility of selecting analog signal outputs, optional two-line display), optional Ethernet or Profibus module, data output in all humidity units, optional relay, optional third analog output

  • High-precision Testo humidity sensor with long-term stability for application in high-humidity processes (option)
  • 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 6681 Industrial temperature/humidity transmitter, accuracy up to ±1.0 % RH (depends on the probe type), selectable analog signal outputs, optional display, optional Ethernet module or Profibus DP module, data output in all humidity units, optional relays, external digital interface for adjustment and parameterization, 2 analog outputs, optional 3rd analog output