Zalman FanMate - 2 The FANMATE 2 is connected in-line with an existing fan and allows infinite control over the speed at which the fan runs. Where a fan is making a lot of noise due to excessive airflow, this can be reduced in a controlled manner, until such point as the noise becomes minimal and the airflow still adequate. The silencing effect of reducing the speed of a fan even by a small amount can be very surprising! The FANMATE 2 has a small rotary knob which can be turned in either direction, to raise or lower the fan speed.

Providing Excellent Service Since 1989 Zalman Accessory ZM-NC2500 Plus Dual Fans For Maximum Cooling Performance - Black (ZM-NC2500 PLUS)(New-Retail) Description: Zalman Accessory ZM-NC2500 Plus Dual Fans For Maximum Cooling Performance. Features: Dual Fans For Maximum Cooling Performance Ergonomically Designed to Minimize User's Fatigue Compatible with Notebooks up to 17 Inches Rubber Grip-Strips Preventing Notebook from Sliding Fan Speed Controller According to User's Environment Height Adjusta

The 3M/Macurco SS103-3A is an exhaust fan controller, which, in conjunction with CM-4 Carbon Monoxide detectors, provide automatic controls to ensure a safe environment in parking garages or maintenance facilities.

VS200 Plug-In Variable Speed Fan Controller - Solid State AC Motor Speed Fan Control. No need to worry about wiring this control. Just plug into an electrical outlet, then plug your fan into the control. It operates from 115 VAC 50/60 Hz with a maximum rating of 300 Watts (2.5 amps). The VS200 contains an On/Off line switch with variable speed control from low to high. UL Listed.

PECO 0-10 VDC Controller, Model TA167-006 Features: Supplies 0-10 VDC proportional output control of valves and dampers Heat or Cool Operation 24 VAC Connections: Terminal Blocks Fan Continuous operation5 Year Limited Warranty 4.75 L. 3.00 W. 1.25 H.

While the CT-DH-3 has many applications, it was primarily developed for use with CO2 equipment and exhaust/ventilati on fans. The left side (or equipment) outlets of the controller are normally "ON" until defeated when the right side outlets are activated. Internal sensors will allow for 7F temperature zone and a 5% humidity differential between the time that the fans come "ON" and then turn "OFF" again. When temperature or humidity rises above your dial set points, the right outlets will activate and the left outlets will deactivate. The right side outlets will remain "ON" until the temperature drops 7 and/or the humidity drops 5% below your set points. At which time, the right outlets will shut "OFF" and reactivate the left outlets.The CT-DH-3 operates on 120 Volt AC with 15 Amp maximum... Less

While the CT-DH-3 has many applications, it was primarily developed for use with CO2 equipment and exhaust/ventilati on fans. The left side (or equipment) outlets of the controller are normally "ON" until defeated when the right side outlets are activated. Internal sensors will allow for 7F temperature zone and a 5% humidity differential between the time that the fans come "ON" and then turn "OFF" again. When temperature or humidity rises above your dial set points, the right outlets will activate and the left outlets will deactivate. The right side outlets will remain "ON" until the temperature drops 7 and/or the humidity drops 5% below your set points. At which time, the right outlets will shut "OFF" and reactivate the left outlets. The CT-DH-3 operates on 120 Volt AC with 15 Amp... Less