Product details
Multi-Function Microcomputer Thermostat
The Precision Digital Temperature Controller is a versatile and intelligent thermostat suitable for industrial control, home appliances, greenhouse systems, refrigeration, and automation environments. Supporting a wide range from -55°C to +120°C, it features a high-resolution 0.1°C display and precise control accuracy to ensure reliable and accurate temperature regulation.
The controller includes a 1-meter waterproof metal NTC sensor and a built-in 10A relay output for direct control of heating or cooling equipment. It supports multiple input voltages (DC5V/12V/24V and AC110~220V), making it compatible with various power systems. Key features include upper/lower temperature limit settings, return difference adjustment, startup delay, calibration, over-temperature alarm, and more, making it ideal for diverse environments.
Product Specifications
| Parameter | Specification |
| Model | KW3230 |
| Product Name | Precision Digital Temperature Controller |
| Temperature Range | -55~120°C |
| Measurement Accuracy | ±0.1°C |
| Control Accuracy | ±0.1°C |
| Return Difference | ±0.1°C |
| Refresh Rate | Approx. 0.5s |
| Input Voltage | DC5V / 12V / 24V，AC110~220V |
| Temperature Sensor | 10K 0.5%) Waterproof Metal Head |
| Output | Single 10A Relay |
| Environment | -20°C~+65°C |
| Dimensions | 79×43×26mm |
Function Parameter Settings
P0 – Cooling / Heating mode selection
Select whether the controller operates in cooling mode (C) or heating mode (H).
P1 – Hysteresis setting: 0.1–30°C
Sets the temperature difference required before switching the relay back on.
P2 – Maximum temperature limit (up to 120°C)
Defines the highest allowable temperature setting.
P3 – Minimum temperature limit (down to -55°C)
Defines the lowest allowable temperature setting.
P4 – Temperature calibration
Used to adjust or correct sensor reading offset.
P5 – Delay start time setting (0–10 minutes)
Sets a delay time before the output is activated, useful for compressor protection.
P6 – High temperature alarm threshold (-55°C to 120°C)
Sets the temperature point where the system will trigger an alarm.
