Portable Thermohygrometer HI9564

In stock
HI9564 is a portable thermohygrometer designed to provide peak performance in harsh environments. Measurements of temperature and relative humidity are made easy with the rugged, water-resistant housing of the meter and durable casing of the HI70602 probe. HI9564 features an auto-off function after 20 minutes of inactivity, temperature readings in both Celsius and Fahrenheit, and on-screen messages to direct procedures and indicate potential errors.


HI9564 and HI9565 are portable thermo-hygrometers designed to measure temperature and Relative Humidity (RH). HI9565 presents the added advantage of being able to calculate the dew point from the temperature and RH. To ensure maximum protection against the effects of humidity and condensation, the instruments are housed in a rugged, water-resistant casing. The temperature and RH probe is a "smart probe" which consists of a factory calibrated electronic sensor which requires no user calibration. Our "smart probes" will work with any of our meters without the need to recalibrate as the electronic sensor tracks the performance and stores the calibration history directly onto the probe. 



  • Thermohygrometers with Dew Point and Calibration Data-Logging Probe.
  • Simultaneous RH and temperature measurements on a large, dual-line LCD display
  • Selectable temperature unit (°C or °F)
  • HI706023 dedicated temperature and RH probe with electronic sensor
  • Quick connect probe
  • Battery life indication and low battery detection
  • Keystroke confirmation tone
  • Auto-off function
  • Waterproof casing IP67
  • MIN, MAX value and HOLD indicator
  • Stability indicator



RH Range

0.0 to 100.0 % RH


0.1 % RH


±2.5 % RH (0 to 90 % RH)

Temperature Range

-10.0 to 60.0°C / 14.0 to 140.0°F


0.1°C / 0.1°F


±0.4 °C / ±0.8 °F

Additional Specifications Probe

HI706023 RH/temperature probe

Battery Type

1.5V AAA / 10,000 hours of continuous use

Auto-off User selectable

after 8 minutes, 60 minutes or disabled


0 to 60 °C (32 to 140 °F); 98 % RH non-condensing


154 x 63 x 30 mm (6.1 x 2.5 x 1.2”)


196 g (6.91 oz.)

Ordering information

HI9564 is supplied with HI706023 RH/temperature probe, 1.5V AAA batteries (3) and instruction manual.

All prices are VAT excluded and without shipping costs, unless otherwise stated. Hanna Service d.o.o. — Sermin 75H, Bertoki — 6000 Koper (Slovenia) — VAT ID SI92346669 ©2021 All rights reserved