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STC-3028 Digital Temperature Humidity Controller 110-220V

STC-3028 Digital Temperature Humidity Controller 110-220V

₹729.00Price

🌡️ STC-3028 Digital Temperature & Humidity Controller (110–220V)

🧠 What is it?

The STC-3028 Temperature Humidity Controller is a plug-and-play controller used to automatically regulate temperature and humidity using external devices like heaters, coolers, humidifiers, and dehumidifiers.

👉 It’s widely used in environments where precise climate control is needed.

⚙️ How It Works

The controller uses:

  • A temperature sensor probe

  • A humidity sensor probe

Working logic:

  • You set desired temperature & humidity ranges

  • Device continuously measures current values

  • If values go beyond set limits:

    • It activates relays

    • Turns ON/OFF connected appliances

👉 Example:

  • Temp too low → Heater ON

  • Humidity too high → Dehumidifier ON

🔌 Input & Output

Power Supply:

  • 110–220V AC (direct mains input)

Outputs (via relays):

  • Temperature control socket

  • Humidity control socket

👉 Each output acts like an automatic switch.

🔌 Typical Socket Layout

  • Power input (plug to mains)

  • 2 output sockets:

    • 🌡️ Temperature device (heater/cooler)

    • 💧 Humidity device (humidifier/dehumidifier)

📊 Key Features

  • Dual display (temperature + humidity)

  • Independent control for both parameters

  • High/Low setpoint configuration

  • Plug-and-play (no coding required)

  • Built-in relays for automation

📊 Specifications

  • Temperature range: -50°C to +99°C

  • Humidity range: 1% to 99% RH

  • Accuracy:

    • Temperature: ±1°C

    • Humidity: ±5% RH

  • Control outputs: Relay-based

  • Voltage: 110–220V AC

🧠 Control Modes

🌡️ Temperature Control

  • Set:

    • Target temperature

    • Heating or cooling mode

💧 Humidity Control

  • Set:

    • Target humidity

    • Humidifying or dehumidifying mode

🔄 Working Example

Let’s say:

  • Temp set = 25°C

  • Humidity set = 60%

👉 System behavior:

  • Temp < 25°C → Heater ON

  • Temp > 25°C → Cooler ON

  • Humidity < 60% → Humidifier ON

  • Humidity > 60% → Dehumidifier ON

🚀 Applications

  • 🐣 Incubators

  • 🌱 Greenhouses

  • 🐟 Aquariums

  • 🏠 HVAC systems

  • 🍄 Mushroom cultivation

  • 🧪 Laboratories

✅ Advantages

  • No programming required

  • Controls both temperature & humidity

  • Works directly with AC appliances

  • Easy installation

  • Cost-effective automation

⚠️ Limitations

  • Limited precision compared to industrial controllers

  • Relay switching delay

  • Not suitable for very high-power industrial loads without external relays

  • Basic interface (no advanced logging or IoT)

🔍 Safety Tips ⚠️

  • Works on high voltage (AC mains) → handle carefully

  • Ensure proper earthing

  • Do not overload sockets

  • Use proper rated appliances

💡 Real-Life Use Case

In a greenhouse:

  • Controller monitors environment

  • Automatically:

    • Turns ON heater at night

    • Activates humidifier during dry conditions
      👉 Maintains ideal plant growth conditions without manual effort

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