About the manufacturer When you need silent cooling or high power cooling the answer is Procool Procool fans provide the most airflow with the lowest noise. Procool pioneered the industry in Silent cooling systems designed for professional studio and home theater applications. On the other side of cooling, Procool leads the industry with High power cooling systems. Server rack cooling systems - Industrial and Military grade systems - Custom designed systems. Whatever the application, we work with the customer to provide the best cooling options. All fans are hand built in the USA Procool AVX Kit Series Designed for professional studio and home theater applications Fans have a higher airflow to noise ratio than any other fan in its class Procool AVX Kit Series Includes: PROCOOL SXT80 FAN WITH MOUNT PLATE Procool model SXT80 fans are temperature controlled automatic on/off with variable speed, ranging from 1200 RPM to 2400 RPM at full speedIncluded in all AVM and AVX Kit Series ✓ Quiet operation - 6-14 dBA ✓ High Airflow - 14-32 CFM THERMISTOR PROBE ON ALL PROCOOL SXT80 FANS Each fan has a temp sensor that should be located on or near the heat source. The sensor tells the fan when to start and stop and how fast to run. When the sensor detects heat above 75-77°F the fan will start. As heat increases the fan speed will increase. The fan will reach full speed of 2400 RPM at about 104-107°F. The fan temp sensors can be moved closer to the heat source to optimize or fine tune fan operation. As temperature levels drop the fan will slow down. Once the temp falls below 75-77°F the fan will shut off. PROCOOL AVP-MFC Large Blue LED display (Switchable- on or off)Switch between Fahrenheit and CelsiusTemp range from 32-212?F (0-100 Celsius)ON/TC Mode Switch (back) Switches from thermal control to always on24" thermal probe PROCOOL AVP-POWER SUPPLY Fan Controller power supply 100-240VAC-5/12VDC/2A AVX-180T AVX-280T AVX-480T Buying Options Add to Cart Add to Cart Price — no data $109.99$109.99 $149.99$149.99 Number of fans: 1 2 4 Airflow: 14-32 CFM 28-64 CFM 56-128 CFM Noise: 6-14 dBA 9-17 dBA 12-20 dBA Power Supply Rating: 100-240 VAC - 12 VDC/5VDC 100-240 VAC - 12 VDC/5VDC 100-240 VAC - 12 VDC/5VDC Power Draw: 2.04w 4.08w 8.16w Amp Draw: 0.17A 0.34A 0.68A Demensions: 3" x 3" x 1" 3" x 3" x 1" 3" x 3" x 1" Max Fan Compatibility: 5 5 5 Mounting Hardware: ✓ ✓ ✓ Fan Grill with Screws: ✓ ✓ ✓