ISNATCH 49693532 Digital Thermostat User Manual


ISNATCH 49693532 Digital Thermostat 



The ISNATCH 49.6935.33 Digital Thermostat is a programmable device designed to accommodate various user needs. It features preset daily programs and is powered by 2 x AA batteries, suitable for replacing most domestic thermostats. It’s designed for a 230VAC power supply and supports a maximum load of 6 Amps (resistive) or 2 Amps (inductive)​​. For installation, the thermostat should be mounted approximately 1.6 meters above the floor on interior walls, away from direct sunlight, heaters, cookers, and ventilation outlets. The installation process involves detaching the front cover, connecting wires to terminals, and inserting batteries​​. The thermostat allows for setting the clock and day and offers a weekly programmable feature with 7-day/24-hour programs, which can be customized for either ‘Comfort’ or ‘Evening’ temperature modes. Additionally, it has a temporary manual override feature, allowing you to override the existing temperature setting for any period from 1 to 48 hours​.

Product Description

The thermostat can replace most household thermostats. For heating and air conditioning. Display of the clock and room temperature. Each day program is divided into 24 hours. Folding cover for control parts. Packaging:

  • Power supply: 3V (2 x AA batteries)
  • Load capacity: 8A at 250VAC
  • Programmable periods: 7
  • Selectable temperature ranges: 5-30°C
  • Dimensions (W x H x D): 124 x 85 x 30 mm
  • Weight: 165 g.


How to operate

  1. Install Batteries and Reset: Insert 2 x AA batteries and press the ‘RESET’ key to initiate setup.
  2. Set Clock and Day: After pressing ‘RESET’, the thermostat enters the ‘TIME ADJUSTMENT’ mode. Use designated keys to set the hour, minute, and day, confirming each setting with the appropriate key.
  3. Program the Thermostat: Utilize its 7-day/24-hour programming capability to set your desired temperature for different times and days. Choose between ‘Comfort’ or ‘Evening’ modes as per your preference.
  4. Manual Override: If you need to temporarily change the temperature setting, enter the ‘MANUAL OVERRIDE TEMPERATURE’ mode and adjust the temperature using the keys. This override can be set for a period ranging from 1 to 48 hours.
  5. Viewing Current Settings: Check the display to see the current temperature and program settings.
  6. Adjusting Temperature Settings: For each programmed period, set your desired temperature for ‘Comfort’ or ‘Evening’ modes.
  7. Saving Programs: After setting your desired temperatures and times, ensure to save these settings so the thermostat follows your custom schedule 
  8. Monitoring: Regularly check and adjust your settings as needed for optimal comfort and energy efficiency.
  9. Battery Maintenance: Monitor the battery level and replace the batteries when necessary to ensure continuous operation.
  10. Safety Precautions: Always ensure safety, especially when handling batteries and making adjustments to electrical systems.


The ISNATCH 49.6935.33 Digital Thermostat is used to control the temperature in a domestic environment. It allows users to program temperature settings according to their daily or weekly schedules. You can set specific temperatures for different times of the day and week, ensuring comfort and energy efficiency. Additionally, the thermostat offers a manual override function, allowing temporary adjustments to the preset temperature for periods ranging from 1 to 48 hours. This feature is particularly useful for unexpected changes in weather or personal comfort needs. The device is battery-powered, making it easy to install and maintain.


  1. Programmable Settings: Preset daily programs customizable to user lifestyles, with 7-day/24-hour programming options.
  2. Manual Override: Temporary override of preset temperatures for 1 to 48 hours.
  3. Battery Powered: Operates on 2 x AA batteries, facilitating easy installation and maintenance.
  4. Easy Installation: This can replace most domestic thermostats and is suitable for systems requiring a 2-wire connection.
  5. Safety and Compatibility: Designed for a 230VAC power supply with a maximum load of 6 Amps (resistive) / 2 Amps (inductive).
  6. User-Friendly Design: Intuitive controls for setting time, day, and temperature preferences.
  7. Home Heating Systems: It can be connected to a home’s heating system to maintain desired temperature levels. This includes use with boilers, radiators, and underfloor heating systems.
  8. Energy Efficiency: By programming temperatures according to daily and weekly schedules, it helps in reducing energy consumption and cost by heating the home only when needed.
  9. Comfort Management: Users can set different temperatures for different times of the day or week, ensuring comfort during occupied hours and energy savings during unoccupied periods.
  10. Manual Temperature Control: It allows for manual adjustments, overriding programmed settings for short periods, which is useful during unexpected weather changes or for temporary comfort adjustments.
  11. Simple Retrofit: As it replaces most domestic thermostats and is battery-powered, it’s suitable for upgrading existing home heating systems without complex wiring.


What is the ISNATCH 49.6935.33 Digital Thermostat?

A programmable domestic thermostat for controlling home heating systems.

How is the thermostat powered?

It operates on 2 x AA batteries.

Can it replace most domestic thermostats?

Yes, it’s designed to replace most home thermostats.

What is the maximum electrical load it can handle?

6 Amps (resistive) / 2 Amps (inductive).

Does it have preset programs?

Yes, it comes with preset daily programs suitable for different lifestyles.

Can I manually override the programmed settings?

Yes, there’s a temporary override for 1 to 48 hours.

Is it suitable for outdoor use?

No, it should only be mounted on interior walls.

What should I avoid when installing the thermostat?

Avoid direct sunlight, heaters, cookers, ventilation outlets, concealed boilers, pipework, or chimney flues.

Is it easy to install?

Yes, especially if replacing an existing 2-wire thermostat.

What type of heating systems can it control?

It’s suitable for most residential heating systems like boilers and radiators.

Can I program it for different times of the day?

Yes, it allows for 7-day/24-hour programmable settings.

What should be done with neutral or earth conductors during installation?

They must not be connected to the thermostat and should be made electrically safe.

How is the clock and day set on the thermostat?

After inserting batteries or pressing the reset key, you can adjust the hour, minute, and day settings.

What safety precautions should be taken during installation?

Ensure the electricity supply is switched off at the mains, and if in doubt, consult a qualified electrician.

Is the thermostat programmable for weekly schedules?

Yes, it has a weekly programmable feature.

How high should the thermostat be mounted?

Approximately 1.6 meters above the floor​.


ISNATCH 49693532 Digital Thermostat User Manual





Leave a Reply

Your email address will not be published. Required fields are marked *