Contact Us BUY NOW HMK15 Humidity Calibrator Vaisala Humidity Calibrator HMK15 makes calibration and spot checking of humidity probes and transmitters easy and reliable, although for critical applications we recommend a Vaisala Service Center calibration for best possible results. Scroll down to watch a video on the exact process on how to calibrate the Vaisala HUMICAP Humidity and Temperature HMT330 Transmitter Series probes with the HMK15 kit. Features Based on saturated salt solutions Fast temperature equilibration Chambers and transit covers make HMK15 easy to transport. Pre-measured certified salts available + Show more Key Benefits Easy and reliable calibration of humidity probes and transmitters Suitable for laboratory use and on-site checks No external power required Watch the video Saturated salt calibration with the Vaisala HMK15 Downloads Datasheet: HMK15 Humidity Calibrator (290.6 KB) Manual: HMK15 User Guide in English (1.14 MB) Order Form: HMK15 Order Form (60.37 KB) Brochure: Instruments for the Automotive Industry (163.71 KB) Brochure: Life cycle services for instruments (1.98 MB) Certificate: MgCl MSDS Safety Data Sheet (121.12 KB) Certificate: NaCl MSDS Safety Data Sheet (110.4 KB) Certificate: K2SO4 MSDS Safety Data Sheet (117.09 KB) Certificate: KCl Material Safety Datasheet (147.7 KB) Certificate: LiCl MSDS Safety Data Sheet (122.38 KB) Certificate: Deionized MSDS Material Safety Datasheet (374.99 KB) Vaisala News Article: Easy and Reliable Calibration with the HMK 15 Humidity Calibrator (611.92 KB) All downloads Product Resources One-point in-situ calibration – the fast, easy option Read more Saturated salt calibration with the Vaisala HMK15 – another easy option Read more Need support? Sign up for news Contact us