
D-D Dual Temperature Controller TC125 – Aquarium Heating & Cooling Control
Maintain stable aquarium water temperatures with the D-D Dual Temperature Controller TC125, a digital heating and cooling controller designed for freshwater, marine and reef aquariums.
Featuring two independent mains power sockets, the TC125 allows you to connect a compatible aquarium heater and cooling fan or chiller, automatically controlling each device according to your selected temperature settings.
With a clear backlit LCD display, waterproof temperature sensor and adjustable audible and visual alarms, this controller provides a convenient way to manage aquarium temperatures throughout the year.
Suitable for use with D-D Titanium Aquarium Heaters and other compatible heating equipment, the TC125 offers straightforward plug-and-play installation without complicated wiring.
Key Features:
- Dual Heating & Cooling Control – Automatically operates compatible heating and cooling equipment
- Two Independent Power Sockets – Dedicated connections for aquarium heaters and cooling fans or chillers
- Precise Temperature Regulation – Adjustable temperature differential starting from 0.3°C
- Audible & Visual Alarms – Alerts you when aquarium temperatures move outside selected limits
- Backlit LCD Display – Clear blue illuminated screen displays aquarium temperature and settings
- Waterproof Temperature Sensor – Suitable for submerged use in freshwater and marine aquariums
- 2 Metre Sensor Cable – Supplied with a suction cup for convenient aquarium positioning
- 1600W Heating Capacity – Supports compatible resistive heating loads up to 1600W
- 600W Cooling Capacity – Supports compatible inductive cooling loads up to 600W
- Power-Off Memory – Retains programmed settings following a power interruption
- Plug & Play Installation – No specialist wiring required
Automatic Heating & Cooling
The D-D TC125 Dual Temperature Controller is designed to help maintain stable water temperatures by automatically switching connected heating and cooling equipment on or off as required.
Heating Socket: Activates a compatible aquarium heater when the water temperature falls below the programmed heating threshold.
Cooling Socket: Activates a compatible cooling fan or chiller when the aquarium temperature rises above the programmed cooling threshold.
This dual-control arrangement is particularly useful for marine reef aquariums and other temperature-sensitive aquatic environments.
Adjustable Temperature Control
The TC125 allows users to configure temperature settings to suit their aquarium requirements.
For example, with a target temperature of 25°C, the controller can be configured to maintain an operating range of approximately 24.7°C to 25.3°C.
The controller features a temperature display resolution of 0.1°C, making it easy to monitor changes in aquarium temperature.
Audible & Visual Temperature Alarms
The integrated alarm system helps alert aquarium keepers when the water temperature moves outside the selected limits.
For example, with a target temperature of 25°C and an alarm setting of 1°C, the controller can provide an alert if the temperature falls below 24°C or rises above 26°C.
This provides an additional way to monitor potentially unsuitable aquarium temperature conditions.
Waterproof Temperature Sensor
The controller includes a 2 metre waterproof, plastic-coated temperature sensor with a mounting suction cup.
The sensor can be positioned within the aquarium or sump to monitor water temperature continuously.
For accurate readings, position the probe away from direct heater contact and cooling equipment outlets.
Ideal for D-D Titanium Aquarium Heaters
The D-D TC125 provides a suitable control platform for compatible D-D Titanium Aquarium Heaters.
It can also be used with other suitable aquarium heaters, cooling fans and chillers, provided the equipment meets the controller's electrical specifications.
Suitable For:
- Freshwater aquariums
- Tropical fish tanks
- Marine aquariums
- Coral reef aquariums
- Aquarium sump systems
- Compatible titanium aquarium heaters
- Aquarium cooling fans and chillers
Technical Specifications:
- Brand: D-D The Aquarium Solution
- Model: TC125
- Product Type: Dual Digital Temperature Controller
- Control Functions: Heating & Cooling
- Heating Output: Maximum 1600W (Resistive Load)
- Cooling Output: Maximum 600W (Inductive Load)
- Temperature Display Resolution: 0.1°C
- Minimum Temperature Differential: 0.3°C
- Alarm Adjustment: 0.5–5°C From Set Temperature
- Temperature Sensor Cable: 2 Metres
- Display: Backlit Blue LCD
- Power Supply: 220V AC ±10%, 50/60Hz
- Controller Power Consumption: 3W or Less
- Display Panel Dimensions: 95 x 50 x 15mm
- Power Socket Unit Dimensions: 160 x 70 x 45mm
- Product Code: TC125
Installation Guidance:
- Position the waterproof temperature sensor in the aquarium or sump using the supplied suction cup.
- Connect a compatible aquarium heater to the dedicated heating socket.
- Connect a suitable cooling fan or chiller to the cooling socket if required.
- Connect the controller to the appropriate mains power supply.
- Programme the desired aquarium temperature and alarm settings.
- Check that the connected heating and cooling equipment operates correctly.
Important Information:
PLEASE NOTE: This listing is for the D-D Dual Temperature Controller TC125.
Aquarium heaters, cooling fans, chillers and other aquarium equipment are not included unless specifically stated.
Maximum Heating Load: 1600W for compatible resistive heating equipment.
Maximum Cooling Load: 600W for compatible inductive cooling equipment such as chillers.
Always check the electrical ratings of connected equipment before use and follow the manufacturer's installation instructions.
The waterproof temperature probe is designed for aquarium use. Keep the controller display and mains socket unit dry and away from water exposure.
Maintain stable aquarium temperatures with the D-D Dual Temperature Controller TC125, a practical heating and cooling management solution for freshwater, marine and reef aquarium systems.
| Brand | D-D |
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