STC-200 Digital Temperature Controller – Reliable Thermostat & Alarm Control

The STC-200 digital temperature controller is designed to provide precise, reliable temperature regulation and automatic control for a variety of applications — from incubators and aquariums to chillers, refrigeration units, greenhouses, fermentation chambers, and more.

Equipped with a built-in NTC sensor and dual relay outputs, STC-200 can switch heating or cooling devices on and off to maintain your desired temperature range. An integrated alarm function provides added safety: it triggers when temperatures exceed preset limits, ensuring immediate alerts for overheat or overcool conditions.

🔧 Technical Details & Functions

• Temperature Range & Accuracy: Typically supports a wide range (e.g. –40 °C to +99 °C, depending on version). Reliable for both heating and cooling environments.

• Dual Relays: Separate relay outputs for heating and cooling — ideal when controlling heaters, chillers, compressors, fans, or cooling units.

• Alarm Feature: Built-in alarm output that can trigger buzzers, lights, or external alert systems if temperature goes out of defined bounds or in case of sensor malfunction.

• Adjustable Settings: Users can configure setpoints, hysteresis (differential), calibration offsets, and alarm thresholds for optimal control.

• Compact Panel-Mount Design: Easily mounted in cabinets, enclosures, incubators or control boxes for neat installation.

• Power Compatibility: Common models work with standard AC mains (e.g. 220 VAC), making them suitable for household, industrial, or lab environments.

⚙ Typical Use Cases & Applications

• Incubators & Hatcheries — Maintain constant temperature for eggs, reptiles, or incubation chambers.

• Refrigeration & Cold Storage — Regulate compressor or cooling unit to keep safe storage temperatures.

• HVAC & Greenhouse Climate Control — Automate heaters, fans, or vents to maintain ideal temperature for plants or animals.

• Aquariums & Terrariums — Control heaters or cooling fans to keep water or air temperature stable.

• Food Fermentation / Brewing / Processing — Keep fermentation or processing chambers at specific temperatures.

• Home Automation & DIY Projects — Use as a thermostat controller in custom climate projects or automated systems.

⚠️ Precautions & Best Practices

• Ensure correct wiring and follow relay ratings — do not exceed the load capacity of the relays.

• Place the temperature sensor away from direct heat/cold sources or drafts for accurate readings.

• If controlling compressors or high-current devices, consider using external contactors or relays to avoid stressing the controller’s internal relay.

• Protect the unit from moisture, dust, and corrosive environments to ensure longevity.

• For critical temperature control (e.g. incubators or cold storage), periodically verify calibration and set appropriate alarm thresholds to avoid failures.

🔗 Internal Links for Relevant Categories

• Electronics Components — https://electroway.org/product-category/electronics-components/

• Tools & Accessories — https://electroway.org/product-category/tools-and-accessories/

• ICs — https://electroway.org/product-category/ics/

🎥 YouTube Tutorial / Setup Guide

Watch Video:https://www.youtube.com/shorts/NMU7oT1yat8

4. Product Summary

The STC-200 is a versatile and reliable digital temperature controller with dual relay outputs and alarm capability — perfect for temperature-critical systems such as incubators, refrigeration, HVAC, aquariums, fermentation chambers, and greenhouses. Its adjustable control settings and compact design make it a useful module for both hobbyists and professionals.