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Humidity Calibrator HMK15 Humidity Calibrator HMK15

Humidity Calibrator HMK15

Vaisala Humidity Calibrator HMK15 makes calibration and spot checking of humidity probes and transmitters easy and reliable.

It is essential that the funcitoning of an instrument is periodically checked against a reference Vaisala has developed the Vaisala humidity Calibrator HMK15 to make claibration and spot checking of humidity probes and transmitters easily and reliable.

It is:
  • Easy and reliable calibration of humidity probes and transmitters
  • Based on saturated salt solutions
  • Fast temperature equilibration
  • No external power required
  • Suitable for laboratory use and on-site checks
  • Chambers and transit covers make HMK15 easy to transport
  • Pre-measured certified salts available
  • Vaisala Service Centers offer accredited calibrations for humidity, temperature and barometric pressure



Model HMK15
Accuracy (at 20ºC)
of certified calibrated
and ready dosed salt
LiCl (11% rH): ±1.3%
MgCl2 (33% rH): ±1.2%
NaCl (75% rH): ±1.5%
K2SO4 (97% rH): ±2.0%
Included accessories
  • Two salt chambers, chamber covers and transit covers
  • Base plate
  • Vaisala calibrated thermometer
  • Measurement cup and mixing spoon




Specific References

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