USER MANUAL.pdf

## Hydro-Thermometer HGIOHT Instructions Summary

This indoor/outdoor hygro-thermometer with alarm clock measures both temperature and humidity.

Key Features:

Dual display: °C or °F
Max/Min memory for temperature & humidity
12-hour or 24-hour time format
Alarm clock with customizable set time
3-meter anti-corrosion stainless steel sensor cable
Mounting keyhole and fold-away stand

Setup and Operations:

1. Power On: Remove insulation insert to activate. Display shows indoor/outdoor temperature, humidity, and default time (12AM).
2. Temperature Units: Press °C/°F button to switch between Celsius and Fahrenheit.
3. Max/Min Readings:
Press MAX/MIN once for max/min temperature & humidity records since last reset.
Press and hold MAX/MIN for 2 seconds to reset all records (records erased with battery change).
4. Time Setting:
Press SET to toggle between 12-hr and 24-hr formats.
Press and hold MODE for 2 seconds to enter minute setting, then press SET to adjust the minute.
Repeat for hour setting, then press MODE again to save and return to normal time mode.
5. Alarm Setting:
Press MODE once to enter alarm mode. ":" stops blinking.
Press and hold MODE for 2 seconds to activate alarm. Bell symbol flashes, showing minute setting. Adjust with SET button.
Save by pressing MODE again. Confirm time with SET.
6. Alarm Activation/Deactivation:
In alarm mode (bell symbol flashing), press SET to activate alarm at set time. Deactivate with any key press.
7. Measures:

Indoor Thermometer: -10°C to 50°C (-14°F to 122°F) with 0.1° resolution and +/-1° accuracy.
Outdoor Thermometer: -50°C to 70°C (-58°F to 158°F) with 0.1° resolution and +/-1° accuracy.
Indoor Hygrometer: 25% RH to 98% RH with 1% resolution and +/-3% accuracy (50%-80%), +/-5% (below 50% or above 80%).