Take full control of your heating and cooling systems with the W3230 Digital Temperature Controller – a compact, reliable, and easy-to-use thermostat module designed for accurate temperature regulation across a wide range of applications.

Ideal for DIY projects, incubators, aquariums, refrigeration, greenhouses, and industrial setups, the W3230 offers precise monitoring and automatic control with a clear LED display and robust relay output.

Now available in multiple voltage options to suit your setup:

• 12V DC
• 24V DC
• 220V AC

Smart Temperature Control Made Simple

The W3230 features an intelligent microcontroller system that continuously monitors temperature via the included waterproof probe. Once your set temperature is reached, the controller automatically activates or deactivates connected devices such as heaters, fans, or cooling systems.

With both heating and cooling modes supported, it provides flexible control for a wide variety of environments.

High Accuracy with Wide Temperature Range

Designed for precision, the W3230 delivers accurate readings and stable performance across a broad temperature range.

• Temperature range: -50°C to +110°C
• High measurement accuracy (±0.1°C typical)
• Fast response via NTC waterproof sensor

This makes it suitable for both sensitive applications and high-demand environments.

Bright LED Display & Simple Operation

The integrated LED screen provides clear, real-time temperature readings, even in low-light conditions. Simple button controls allow quick adjustment of temperature thresholds, hysteresis, and operating modes.

• Easy-to-read digital display
• User-friendly interface
• Quick setup and calibration

Heavy-Duty Relay Output

Equipped with a high-capacity relay, the W3230 can directly control a range of electrical devices without additional switching components.

• Relay capacity: up to 20A (model dependent)
• Suitable for heaters, coolers, pumps, and fans
• Reliable switching performance for continuous use

Compact, Durable & Easy to Install

With its compact design, the W3230 can be easily integrated into panels, enclosures, or DIY systems. The durable housing ensures long-lasting performance in both home and industrial environments.

Available Voltage Options

Choose the correct model for your application:

• 12V DC – Ideal for automotive, battery-powered, and low-voltage systems
• 24V DC – Perfect for industrial and commercial control systems
• 220V AC – Direct mains-powered applications for home or workshop use

Typical Applications

• Incubators and hatcheries
• Aquariums and terrariums
• Refrigeration and cooling systems
• Greenhouses and hydroponics
• Home brewing and fermentation
• DIY temperature control projects

Features

• Digital temperature controller with LED display
• Available in 12V DC, 24V DC, and 220V AC
• Wide temperature range: -50°C to +110°C
• Heating and cooling mode support
• Waterproof NTC temperature probe included
• High-power relay output (up to 20A)
• Compact, durable design
• Easy setup and operation

Technical Specifications

• Model: W3230
• Display: LED digital display
• Temperature Range: -50°C to +110°C
• Accuracy: ±0.1°C
• Sensor Type: NTC waterproof probe
• Relay Capacity: Up to 20A
• Control Modes: Heating & Cooling
• Power Supply Options:
  • 12V DC
  • 24V DC
  • 220V AC

What’s in the Box

• 1 × W3230 Digital Temperature Controller
• 1 × Waterproof Temperature Probe