User manual IROX LF108

[. . . ] The Thermo-Hygrometer uses one piece UM-4 or `AAA' size battery ( 1. Notes: After you install or replace the battery, it takes time for sampling once again both the temperature and humidity data. The display will show full segment for 1 to 2 seconds, then shows the updated temperature and humidity reading. [. . . ] This Thermo-Hygrometer will measure / display indoor temperature ( the air temperature measured by the sensor built inside the unit ) or outdoor temperature ( the air temperature measured by the detachable external sensor probe ) and indoor relative humidity ( the relative humidity measured by the sensor built inside the unit ). it can be set to display the indoor/outdoor maximum or minimum temperature and indoor relative humidity recorded. Note: When the outdoor temperature is over the measuring range, flashing digit `-50'(°C) / `-58'(°F) appears on the display ( below ­50°C / -58°F ) or `70'(°C) / `158'(°F) appears on the display ( above + 70°C / + 158°F ) When the indoor temperature is over the operating range, it fades out on the display ( below 0°C / + 32°F ) or blacks out on the display ( above + 50°C / + 122°F ) This Thermo-Hygrometer will continue to record the indoor / outdoor maximum, indoor / outdoor minimum temperature and humidity changes, whether displaying current, maximum or minimum temperature readings. Note: The `IN' indicator will be displayed whenever the temperature display relates to indoor temperature and the `OUT' indicator will be displayed whenever the temperature display relates to outdoor temperature. You can recall / clear those readings as follows: Maximum Current temperature/ humidity Recall the maximum temperature/ humidity Press [MAX] button once Button to press 23°C 68% MAX 28°C MAX 78% ("MAX" indicator, maximum temperature and humidity displayed) MAX 23°C MAX 68% (display updates as the current temperature and humidity reading) 23°C 68% ("MAX" indicator disappears) Displays Plug the external probe into the sensor jack and push the [IN/OUT] button to toggle to the outdoor display. Push the [IN/OUT] button once to toggle the reading to the indoor display. (You may remove or keep the external sensor probe attached to the main unit. Note: For accurate measurement, you should mount the ThermoHygrometer in an area where air can flow freely around it. Doing so will terminate the unit's warranty and may cause damage. When handled properly, this unit is engineered to give you years of satisfactory service. If the unit comes in contact with water, dry it immediately with a soft lint-free cloth. Do not clean the unit with alcohol containing detergent, abrasive or corrosive materials. Abrasive cleaning agents may scratch the plastic parts and corrode the electronic circuit. Do not subject the unit to excessive: force, shock, dust, temperature, or humidity. [. . . ] Abrasive cleaning agents may scratch the plastic parts and corrode the electronic circuit. Do not subject the unit to excessive: force, shock, dust, temperature, or humidity. Such treatment may result in malfunction, a shorter electronic life span, damaged batteries, or distorted parts. [. . . ]