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Principais recursos e especificações

  • Measurement range
     •Air temperature : 0 - 40 °C (32 – 104 °F)
     •Air pressure: 70 – 110 kPa (10.2 – 16.0 psia)
     •Air humidity: 10 – 90%
  • Accuracy (with yearly calibration)
     •Air temperature: ±0.1 °C (±0.2 °F)
     •Air pressure: ±80 Pa (±0.012 psi)
     •Air humidity: ±5%
  • Refresh rate: per 4 s
  • Power dissipation: 2 mW typical
  • Small and light weight
     •Dimension: Φ42 x 26 mm (Φ1.65 x 1.02 in)
     •Weight: 60 g (0.13lb)
  • ISO 17025 certified


The Keysight E1738A environmental sensor measures air pressure, temperature and humidity. The sensor detects and automatically compensates for operating environment changes when used with the 5530 Laser Calibration System. The result is improved overall system accuracy.

Interchangeable sensor cables in varying lengths can be used with either air or material sensors. The E1739A/B/C/D sensor cables are available in 5m, 10m, 15m, and 25m lengths and have easy snap-on connectors so users can quickly change cables as needed.

  • Automatically compensates for environmental changes that affect wavelength-of-light (WOL) in air
  • Increases accuracy and repeatability of systems
  • Extends application of laser interferometer positioning systems
  • High reliability backed by three-year warranty