INSTRUMENT OPERATION - Open the battery compartment and insert battery supplied.
For the most accurate recording of ambient temperatures, the Therma-Hygrometer unit
should be positioned away from direct sunlight and draughts.
MAX/MIN - Press the MAX/MIN button to display the maximum reading ('MAX' symbol
displayed). Press the MAX/MIN button again to display the minimum reading ('MIN' symbol
displayed). Press MAX/MIN button again to return to normal readings. To clear the MAX and
MIN readings press the 'CLEAR' button when viewing the MAX or MIN readings.
Please note: Max/Min readings are not saved
so if the battery is removed or drained the Max/
Min readings will be cleared.
°C/°F - Press the °C/°F button on the back of
the instrument to switch between Centigrade
and Fahrenheit.
COMFORT INDICATORS - This unit displays
comfort icons in the %rh display to show if the
surrounding atmosphere is too dry, just right or
too damp.
BATTERY REPLACEMENT - Replace the battery
when the display dims, using an AAA or 1.5 volt
equivalent. The battery is located under the
battery cover at the rear of the instrument.
EMC/RFI - Instrument performance may be
affected if operated within a high frequency
radio eld, such as near a mobile phone, or if subjected to an electrostatic shock.
GUARANTEE - This instrument carries a one-year guarantee against defects in either
components or workmanship. During this period, products that prove to be defective will, at
the discretion of ETI, be either repaired or replaced without charge. The product guarantee
does not cover damage caused by fair wear and tear, abnormal storage conditions,
incorrect use, accidental misuse, abuse, neglect, misapplication or modication. Full details
of liability are available within ETI’s Terms & Conditions of Sale at etiltd.com/terms. In line
with our policy of continuous development, we reserve the right to amend our product
specication without prior notice.
20 °C 27 °C Temperature
(°C)
NO
COMFORT COMFORT
DRY
NO
COMFORT
DRY DRY
WET
Humidity (%)
70 %
50 %
WETDRY COMFORT
THERMA-HYGROMETER
Operating Instructions
Product code:
810-145
WET WET
