W1209 Digital Temperature Controller (Thermostat Module)

W1209 Digital Temperature Controller is a compact and highly efficient thermostat module designed for precise temperature monitoring and automatic control of heating or cooling devices. Powered by a microcontroller-based design and equipped with a high-precision NTC temperature sensor, the W1209 offers reliable temperature regulation for a wide range of applications including incubators, aquariums, refrigerators, DIY projects, and industrial temperature control systems.

With its easy-to-read 3-digit LED display, user-friendly push-button interface, and onboard relay, the W1209 temperature controller provides an all-in-one solution for maintaining stable temperature conditions. Its small form factor and low power consumption make it ideal for both professional installations and hobbyist projects.

Key Features of W1209 Digital Temperature Controller

• Accurate Digital Temperature Control
  Uses a high-quality NTC thermistor sensor to deliver precise temperature measurement and control.

• Wide Temperature Control Range
  Supports temperature control from –50°C to +110°C, making it suitable for both heating and cooling applications.

• Built-in Relay Output
  Equipped with a 10A relay that can directly control heaters, coolers, fans, and compressors.

• Clear LED Display
  Bright 3-digit LED display provides real-time temperature readings and easy parameter setting.

• Simple Button Operation
  Three tactile buttons allow quick configuration of set temperature, hysteresis, delay time, and calibration.

• Heating and Cooling Modes
  Automatically switches between heating and cooling functions based on user settings.

• Compact & Durable Design
  Small PCB size allows easy integration into control panels, enclosures, and DIY projects.

• Low Power Consumption
  Operates efficiently at low voltage, ensuring energy savings and long-term reliability.

Technical Specifications – W1209 Temperature Controller

• Model: W1209

• Controller Type: Digital Temperature Controller / Thermostat

• Input Voltage: DC 12V

• Temperature Measurement Range: –50°C to +110°C

• Temperature Control Range: –50°C to +110°C

• Control Accuracy: ±0.1°C

• Resolution: 0.1°C

• Sensor Type: NTC Thermistor (10KΩ)

• Relay Output: 10A / 250VAC, 10A / 30VDC

• Display: 3-digit 7-segment LED

• Control Mode: Heating / Cooling

• Hysteresis Range: Adjustable (0.1°C to 15°C)

• Response Time: ≤1 second

• Operating Temperature: –10°C to +60°C

• PCB Size: Approx. 48 × 40 mm

• Mounting Type: Panel or PCB mounting

Specifications may vary slightly depending on manufacturer or production batch.

Applications of W1209 Digital Temperature Controller

The W1209 Digital Temperature Controller is widely used across residential, commercial, and industrial applications due to its reliability and ease of use.

• Incubators & Hatcheries
  Maintains stable temperature conditions for egg incubation and breeding systems.

• Aquariums & Fish Tanks
  Controls aquarium heaters and cooling fans to protect aquatic life.

• Refrigeration Systems
  Used in refrigerators, freezers, cold storage units, and beverage coolers.

• Heating Systems
  Ideal for electric heaters, water heaters, and room temperature regulation.

• DIY Electronics Projects
  Popular among hobbyists and makers for custom temperature-controlled devices.

• Greenhouses & Agriculture
  Ensures optimal temperature for plant growth and seed germination.

• Industrial Equipment
  Suitable for temperature regulation in machinery, enclosures, and control panels.

Why Choose the W1209 Digital Temperature Controller?

The W1209 thermostat module offers an excellent combination of accuracy, durability, affordability, and ease of installation. Its built-in relay eliminates the need for external switching components, while adjustable parameters such as hysteresis and calibration allow fine-tuning for specific applications.

Whether you are a professional technician, an industrial user, or a DIY enthusiast, the W1209 provides dependable temperature control in a compact and cost-effective package. Its wide temperature range, clear display, and flexible control options make it one of the most popular digital temperature controllers available today.

Upgrade your temperature control system with the W1209 Digital Temperature Controller and achieve precise, automatic, and reliable temperature regulation with ease

Package Includes:

1 x W1209 Digital Temperature Controller (Thermostat Module)

FAQ

1. Where can we buy this W1209 Digital Temperature Controller (Thermostat Module)?

This product is available online https://aiiottech.in/product/w1209-digital-temperature-controller/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this W1209 Digital Temperature Controller (Thermostat Module) after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: How to use W1209 Temperature relay CONTROLLER and How to setup