W3001 W3002 Digital Temperature Controller Thermostat Switch

Take precise control of your heating and cooling systems with the W3001 / W3002 Digital Temperature Controller Thermostat Switch. This compact microcomputer-based thermostat delivers accurate, reliable temperature regulation for a wide range of applications — from home brewing, aquariums, and incubators to reptile enclosures, greenhouse setups, and DIY electronics projects.

With its easy-to-read digital display and intuitive push-button programming, you can set your desired temperature and let the controller do the rest — automatically switching heating or cooling devices on and off to maintain your target range with precision.

Key Features

• Dual Model Options: Available as the W3001 (heating control) or W3002 (cooling control) to suit your specific application
• Wide Voltage Compatibility: Works with 12V, 24V, and 220V power supplies for flexible installation
• Compact & Smart Design: Ultra-small form factor (under 1.9 inches) — mounts neatly into panels or enclosures
• 4 Color Options: Choose from four available color variants to match your setup
• Splash-Resistant Build: Designed to withstand minor moisture exposure, adding durability to everyday use
• Digital Display: Clear LED readout for real-time temperature monitoring
• Easy Programming: Set upper and lower temperature thresholds with simple button controls
• NTC Sensor Included: High-accuracy temperature probe included for reliable readings
• Relay Output: Controls connected devices automatically based on your programmed settings

Common Uses

• Aquariums & fish tanks
• Reptile & terrarium heating
• Home brewing & fermentation chambers
• Greenhouse & plant growing environments
• Incubators & egg hatching setups
• DIY electronics and automation projects
• Refrigeration and cooling monitoring

Specifications

• Models: W3001 / W3002
• Power Supply: 12V DC / 24V DC / 110–220V AC
• Temperature Range: -50°C to +110°C
• Temperature Accuracy: ±1°C
• Sensor Type: NTC 10K
• Control Mode: Heating (W3001) / Cooling (W3002)
• Output: Relay switch
• Display: LED digital display
• Form Factor: Panel-mount, compact (under 1.9 inches)
• Available Colors: 4 options

For guidance on safe use of electrical control devices, refer to the U.S. Consumer Product Safety Commission (CPSC) for general electrical safety best practices.

Frequently Asked Questions

Q: What is the difference between the W3001 and W3002 digital temperature controller?

A: The W3001 is designed for heating control — it switches a heater on when the temperature drops below your set point. The W3002 is designed for cooling control — it switches a cooling device on when the temperature rises above your set point. Both models share the same compact form factor and digital display.

Q: What voltage does the W3001 W3002 thermostat switch support?

A: This digital thermostat switch is compatible with multiple voltages including 12V DC, 24V DC, and 110–220V AC, making it suitable for a wide range of home, workshop, and DIY applications worldwide.

Q: Is the W3001 W3002 temperature controller easy to install and program?

A: Yes — the W3001/W3002 is built for straightforward setup. It features simple push-button programming to set your target temperature thresholds and comes with an NTC sensor probe ready to use. Its compact panel-mount design fits neatly into enclosures, control boxes, or DIY project builds.

Q: What applications is this digital thermostat switch best suited for?

A: The W3001 W3002 digital temperature controller is ideal for aquariums, reptile enclosures, home brewing fermentation chambers, greenhouses, incubators, refrigeration monitoring, and general DIY electronics automation projects where precise temperature regulation is needed.