The W3230 Digital Temperature Controller is a compact and high-performance thermostat designed for automatic temperature monitoring and control. It supports both heating and cooling modes with a dual digital LED display, making it ideal for precise temperature regulation in various applications such as aquariums, incubators, greenhouses, and electronic equipment.
Key Features
- Dual-color LED display showing current and set temperature in real time
- Selectable heating or cooling control mode
- High-power 20 A relay output for direct load connection
- Adjustable parameters for hysteresis, calibration, delay start, and alarms
- Built-in data lock and factory reset function
-
Waterproof NTC 10 K temperature probe with high accuracy and stability
- Compact panel-mount design, easy to install and wire
- Ideal for industrial, DIY, and STEM applications
Technical Specifications
| Parameter |
Description / Value |
| Model |
W3230 |
| Power Supply |
12 V DC (±10 %) |
| Power Consumption |
≤ 3 W |
| Temperature Measurement Range |
–55 °C ~ +120 °C |
| Control Range |
–55 °C ~ +120 °C |
| Display Resolution |
0.1 °C (–9.9 °C ~ 99.9 °C), 1 °C otherwise |
| Measurement Accuracy |
±0.1 °C |
| Sensor Type |
NTC 10 K Waterproof Thermistor |
| Sensor Cable Length |
1 meter (extendable) |
| Relay Output |
1 × SPDT (20 A / 14 V DC or 10 A / 220 V AC) |
| Load Capacity |
Resistive load ≤ 240 W (12 V DC) |
| Refresh Rate |
0.5 seconds |
| Temperature Correction (P4) |
–7.0 °C ~ +7.0 °C |
| Hysteresis Range (P1) |
0.1 °C ~ 30.0 °C |
| Delay Start Time (P5) |
0 ~ 10 minutes |
| High Temp Alarm (P6) |
Adjustable |
| Data Protection (P7) |
ON/OFF (lock settings) |
| Restore Default Settings (P8) |
Yes |
| Display Type |
Dual LED, red (PV) & blue (SV) |
| Operating Temperature |
–10 °C ~ +60 °C |
| Humidity Range |
20 % ~ 85 % RH (non-condensing) |
| Body Dimensions |
79 × 43 × 26 mm |
| Panel Cut-Out Size |
73 × 39 mm |
| Mounting Type |
Panel mount with clips |
| Weight |
Approx. 70 g |
| Enclosure Material |
ABS plastic, flame-retardant |
| Safety Protection |
Reverse polarity & over-temperature alarm |
Parameter Settings Overview
| Code |
Function |
Range / Description |
| P0 |
Mode selection |
Heating / Cooling |
| P1 |
Hysteresis |
0.1 ~ 30 °C |
| P2 |
Upper limit |
–55 ~ 120 °C |
| P3 |
Lower limit |
–55 ~ 120 °C |
| P4 |
Temperature correction |
–7 ~ +7 °C |
| P5 |
Delay start |
0 ~ 10 min |
| P6 |
High temp alarm |
Adjustable |
| P7 |
Data lock |
ON / OFF |
| P8 |
Factory reset |
Yes |
Applications
- Smart incubators and reptile tanks
- Aquarium temperature regulation
- Refrigerator, freezer, or fan control
- Greenhouse and environmental chambers
- 3D printer filament dryers and DIY projects
- Industrial automation temperature control
