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Traceable® Monitoring Hygrometer


Unique Traceable® Monitoring Hygrometer simultaneously displays time of day, temperature, and humidity. Clock displays AM/PM or 24-hour military time to the exact minute with 0.01% accuracy. Noting changes is easy with the triple display. Permits monitoring conditions overnight, on weekends, or any time period.

  • Features Min/Max memory, memory clear, °F/°C switchable, 12/24-hour clock
  • At the touch of a button, memory recalls the highest and lowest temperature and humidity readings
  • Internal sensors make it ideal for use in hoods, storerooms, cleanrooms, incubators, drying chambers and environmental cabinets

Multi-point calibration on an individually-numbered Traceable® Certificate which assures accuracy from our ISO/IEC 17025:2017 (1750.01) calibration laboratory accredited by A2LA.  It indicates traceability of measurements to the SI units through NIST or other recognized national measurement institutes (NMI) that are signatories to the CIPM Mutual Recognition Agreement.

Part Number: 4040
Attribute nameAttribute value


Time Range :12/24 Hours
Time Resolution :1 Minute
Time Accuracy :0.01%
Temperature Range :0.0 to 50.0°C
Temperature Accuracy :±1°C
Humidity Range :20 to 90% RH
Humidity Resolution :0.1% RH
Humidity Accuracy :±5% Mid-Range (±8% Otherwise)
Dimensions LxWxH :4¼" x 2¼"x ½"
Weight :2.5 oz