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  • Humidity
    • Range: 0 to 100%RH
    • Accuracy: ±2% / ±3% (90%RH / 100%RH)
    • Resolution: 0.1% RH
  • Temperature
    • Range: -20 to 60°C (-4 to 140°F)
    • Accuracy: ±0.3°C
    • Dependence: ±0.04 %RH/°C
  • Temperature sensor: Pt100 IEC 751 1/3 Class B
  • HUMICAP Sensor
  • NIST traceable (certificate included)

The Vaisala HUMICAP HM34 hand-held humidity and temperature meter provides a fast and convenient way to accurately spot-check relative humidity and temperature. In measurement mode, the extendable probe slides out and measurements take only a few seconds. The HM34 meter includes a HOLD button which allows the user to retain an RH or T measurement until it has been noted or recorded.

The Vaisala HM34 will automatically switch itself off after three minutes of inactivity. The automatic POWER-OFF function prevents the accidental discharge of the battery.