HI9564 Thermohygrometers with Temperature and Relative Humidity measurement

Product information "HI9564 Thermohygrometers with Temperature and Relative Humidity measurement"

Auto shut-off
HOLD button
BEPS and low battery warning


HI 9564 is a portable thermohygrometer designed to provide peak performance in harsh environments.

This instrument also features a HOLD button to freeze readings on the display for manual recording and BEPS (Battery Error Prevention System) which alerts the user in the event that low battery power could adversely affect readings.

HI 70602 RH probe features a built-in microchip that can store calibration data. When the probe is connected to another hygrometer, the microchip transfers the stored calibration data and eliminates the need to recalibrate the instrument.

HI 9564 features auto-off after 20 minutes of inactivity, temperature readings in Celsius and Fahrenheit, and online help to indicate anomalies and direct procedures.

For dusty environment, please consider HI93640 as it has a sintered cap to protects the sensor from dust.

Order Information:
HI 9564 is supplied with HI 70602 relative humidity probe, battery and instructions.


Specification :
Range RH 20.0 to 95.0%
Temperature 0.0 to 60.0°C (32 to 140°F)
Resolution RH 0.1% RH
Temperature 0.1°C / 0.1°F
Accuracy RH ±3 % RH (50 to 85 % RH and 15 to 40°C); ±5% RH (outside)
Temperature ±0.5°C / ±1°F
Probe HI 70602 RH probe with thin, ABS body, perforated cap, internal temperature sensor with DIN connector and 1 m (3.3’) cable (included)
Battery Type / Life 9V / approximately 250 hours of continuous use; auto-off after 20 minutes of non-use (can be disabled)
Environment 0 to 60°C (32 to 140°F); RH max 98% non-condensing
Dimensions 164 x 76 x 45 mm (6.5 x 3 x 1.8
Weight 340 g (12 oz.)