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The STC-3028 (12V DC variant) is an all-in-one digital controller that simultaneously monitors and regulates both temperature and humidity. It features dual independent relay outputs, making it ideal for egg incubators, greenhouses, reptile enclosures, and DIY environmental control systems.Technical Specifications
- Power Supply: 12V DC
- Relay Output Capacity: Max 10A per channel
- Temperature Range: -20C to +80C
- Humidity Range: 0% RH to 100% RH
- Measurement Accuracy: 1C and 0.1% RH
- Housing Material: Flame-retardant ABS plastic
- Mounting Cutout: 71mm x 29mm
| Terminal Pins | Function | Connection Details |
|---|---|---|
| Pins 1 & 2 | Power Input | Connect your 12V DC Power Supply (Pin 1: Negative / Pin 2: Positive) |
| Pins 3, 4, 5 | Sensor Inputs | Factory pre-wired to the combined SHT20 Waterproof Sensor |
| Pins 6 & 7 | Temperature Relay | Acts as a switch for your Heater or Cooling Fan (Max 10A) |
| Pins 8 & 9 | Humidity Relay | Acts as a switch for your Humidifier or Dehumidifier (Max 10A) |
- Group 1 (Left): Temperature buttons 1 (Up) and 1 (Down).
- Group 2 (Right): Humidity buttons 2 (Up) and 2 (Down).
- Press 1 or 2 once to view the Start values.
- Press 1 or 2 once to view the Stop values.
The STC-3028 (12V DC variant) is an all-in-one digital controller that simultaneously monitors and regulates both temperature and humidity. It features dual independent relay outputs, making it ideal for egg incubators, greenhouses, reptile enclosures, and DIY environmental control systems.Technical Specifications
- Power Supply: 12V DC
- Relay Output Capacity: Max 10A per channel
- Temperature Range: -20C to +80C
- Humidity Range: 0% RH to 100% RH
- Measurement Accuracy: 1C and 0.1% RH
- Housing Material: Flame-retardant ABS plastic
- Mounting Cutout: 71mm x 29mm
Pinout and Wiring DiagramThe back panel features 8 screw terminals:
| Terminal Pins | Function | Connection Details |
|---|---|---|
| Pins 1 & 2 | Power Input | Connect your 12V DC Power Supply (Pin 1: Negative / Pin 2: Positive) |
| Pins 3, 4, 5 | Sensor Inputs | Factory pre-wired to the combined SHT20 Waterproof Sensor |
| Pins 6 & 7 | Temperature Relay | Acts as a switch for your Heater or Cooling Fan (Max 10A) |
| Pins 8 & 9 | Humidity Relay | Acts as a switch for your Humidifier or Dehumidifier (Max 10A) |
Note: The relay pins (6/7 and 8/9) are dry contacts and do not output power. You must route power through them to run your loads.Key Operation and ProgrammingThe display features four buttons divided into two groups:
- Group 1 (Left): Temperature buttons 1 (Up) and 1 (Down).
- Group 2 (Right): Humidity buttons 2 (Up) and 2 (Down).
1. Checking Your Targets
- Press 1 or 2 once to view the Start values.
- Press 1 or 2 once to view the Stop values.
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