1. Made from high-quality materials for reliable performance 2. Features an ultra-compact design with a digital display 3. Supports four-wire fan speed control; includes probe cable 4. Enables low-temperature fan shutdown up to 3A, allowing direct power cutoff and reverse timing functionality 5. Offers stable performance and extended service life Parameters: - Designed power supply voltage: DC12V - Voltage range: DC8–16V (circuit operating voltage; please verify fan voltage compatibility) - Circuit self-consumption: less than 40mA (tested at 12V) - Fan current: up to 3.3A - PWM range: 1–100% (signal duty cycle, not actual speed; minimum 0.5%) - PWM frequency: 25kHz (±1kHz) - PWM signal amplitude: 5V (no-load) - Temperature measurement range: -9.9°C to 99.9°C - Temperature measurement accuracy: error within ±1.2°C from 0–50°C; ±2°C outside this range Notes: - This speed controller is compatible only with 4-wire PWM fans; not suitable for 2-wire or 3-wire fans - The included cylindrical probe is best suited for liquid temperature sensing; if using a custom probe, ensure it has 10K resistance and B value of 3950 - Slight color variations between product batches may occur; these do not affect functionality - Material: PCB and electronic components - Color: Black Package Contents: - 1 x Module - 1 x 3P input cable - 1 x Probe cable Note: Light reflection and differences in display settings may cause slight color variations between the product image and actual item. Measurement tolerances are within ±1–3cm.