HTC-1 Clock / Humidity & Temperature Digital LCD Instructions

HTC-1 Thermometer

Here are instructions for the HTC-1 clock / humidity and temperature digital LCD.

HTC-1 Thermometer

Introduction
I own two HTC-1 devices and it has helped me monitor my indoor surroundings. A while ago I lost the instructions, so I sat down and worked out most of the basics, which I’ve provided below:

How to switch between Celsius (°C) and Fahrenheit (°F)

  1. On the back of the device, lift up the stand (support legs).
  2. Press the black button to switch between the different temperature scales.

HTC-1 Thermometer Rear Button

How to set the time and date

  1. Press the MODE button for two seconds until the seconds are blinking.
  2. Press the ADJ button to adjust, and then when ready press MODE again to switch to the next option.
  3. Once the time and date are set, press MODE to finish.

How to set the alarm

  1. Press the MODE button to switch to the alarm time.
  2. Hold the MODE button until the minutes flash and use the ADJ button to select the minutes you require.
  3. Then press MODE again to select the hour option and use the ADJ button to choose the hour.
  4. When finished, press MODE to finalise.

How to enable and disable the alarm
Press the adjust button until both the audio symbol and ‘Alarm’ are shown above the time, and repeat the action to disable the alarm.

HTC-1 Thermometer Alarm Function

How to turn the alarm off when it’s sounding
When the alarm makes a sound, press the MODE button once.

HTC-1 Thermometer Rear

Conclusion
I really like the HTC-1 and my devices are currently being used in a bedroom and lounge. I am able to monitor the effectiveness of my actions, such as opening a window, closing a door and adjusting the boiler. I don’t use the alarm function, but I do find the clock feature useful.

I own a digital thermostat, which is in my hallway. I live in a flat and it’s interesting to see the temperature differences between a bedroom, hallway and lounge.

A cheap device, but it has made a huge difference.

10 Comments

  1. Thanks so much for these easy to read, easy to follow instructions.
    The instruction pdf file online – a copy of the instructions on the packaging – is almost incomprehensible.
    This is easy to follow. I sincerely hope that my device (purchased used) will no longer wake me up in the middle of the night with random alarms.

    • Hi Philipp,

      You’re welcome. I’m glad you’ve found the instructions helpful. I really like this device and I find it so useful.

      Best Regards

      Andrew

  2. Thanks for taking the time to post these instructions – I have four of these and lost the User Manuals a long time ago. They’re all set up again now!

    Incidentally, mine are all within 0.5 degrees Celsius of my main lounge thermostat (I left them all next to it for three days), and also my work air conditioning thermostat (same test). I guess it’s just the luck of the draw. But totally worth the cheap price in my opinion.

    • Hi Bumper,

      Thank you for taking the time to leave a comment. Much appreciated. It’s great to receive feedback and to receive an opinion about the device.

      I agree, I think the device is worth the cheap price. Recently I placed the device in the bathroom to monitor the temperature and humidity. I find it so helpful.

      Best Regards

      Andrew

  3. Thanks a lot for these simple to follow instructions. Have now been able to switch the alarm off which was driving me crazy!

  4. Thanks for the instructions.
    My wall clock just broke so they’ve helped to get the time adjusted on the HTC-1.
    I only used it for checking the temperature up to now. I’m going to get a lot more use out of my HTC-1 now.
    Stay safe.

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