Hygrometer Thermometer with Clock & Alarm

The HTC-1 displays Current temperaturerelative humidity, and current time - all at once on a large numeral LCD display.

The unit also offers the current Date and Day at the push of button, along with Max and Min temperature readings, perfect for home or office.


Growlush Australia brand of HTC-1


  • Large LCD Display shows Temp, Humidity & Time at same time. Total LCD size: 80 x 60 mm
  • Temperature and Humidity displayed in HUGE 1" high numbers.
  • MAX / MIN Humidity & Temperature are recorded automatically and can be reset by user
  • Fahrenheit or Celsius readout (changeable by selecting F or C on back)
  • 12 or 24 hour time modes (changeable by using MODE & ADJ button to set)
  • ALARM function
  • MONTH & DAY display available by pushing ADJ button
  • Integrated back stand for desktop or table use OR hanging hole for wall mounting


Product Specifications

Temperature Range: —10°C to +70°C (14F to +158F)

Temperature Accuracy: ± 1°C (1.8°F)    

Temperature Resolution: 0.1°C (0.2°F)

Humidity Range: 10%RH to 99%RH       

Humidity Accuracy: ± 5%RH   

Humidity Resolution: 1% Battery: (1) AAA 1.5V battery required.  


Basic Functions        

Clock (12 or 24 hour) display

Temperature CC or T) display

Humidity display

Calendar display

Minimum/maximum temperature and humidity display

Quarter bell with hourly chime function



1. Keys

[MODE] Display alarm / Set current date and time, set alarm clock, change between 12 and 24 hour time display,

[ADJ] Display calendar / adjust values.

[MEMORY] Display daily maximum/minimum temperature and humidity values from memory. Set new values into memory.

[RESET] Remove all values from memory, resets the device to original factory state.


2. Initial setup and Clock mode:

Open the battery door on the back of the device as directed. Insert battery and replace door. Power the device on for the first time. Press the [RESET] key once. Hold [MODE] key for 2 seconds, the minute display will begin to flash, press [ADJ] to cycle minute display ahead by one minute for each press. Press [MODE] again and hour display will begin to flash. Set as above. Press [MODE] again to adjust 12/24 hour time display. Press [MODE] again to change month display, then press [MODE] again to change day display. Hold [MODE] for 2 seconds at any time to exit clock setting mode and return to the main clock display.


3. Quarter bell mode:

On clock display, Press [MODE] one time, then press [ADJ] to turn the " " on and off. On " " display mode, hold [MODE] for 2 Seconds to change quarter bell time, the minute display will begin to flash, press [ADJ] to cycle minute display ahead by one minute for each press.... Press [MODE] again and hour display will begin to flash. Set as above. Press [MODE] two times, end of the set.



Hourly chime mode:

On clock display, press [MODE] once to set hourly chime function, press [ADJ] to turn the "Alarm" on and off. Press [MODE] once, end of the set.


4. Calendar mode:

Press [MEMORY] key once to view maximum/minimum temperature and humidity values for current date. Hold [MEMORY] key for 2 seconds to clear current values from memory. The device will automatically return to clock mode after 1 minute.



1. Press the [RESET] key after changing the battery.

2. Press the [RESET] key to reset the device if is not working properly or encounters any errors.

3. Please dispose discharged batteries responsibly and in accordance with law.




Packing list:

1x   hygrow meter
SKU htc-1
Barcode # 880924877762
Brand Growlush
Shipping Weight 0.5000kg
Shipping Width 0.100m
Shipping Height 0.100m
Shipping Length 0.030m
Shipping Cubic 0.000300000m3

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