Digital Day/Night Fan Speed Controller (BETA-2)

Regular Price $89.30

The BETA-2 can control variable-speed fans by using the current temperature to increase or decrease the fan speed. By increasing the fan speed, cooling is increased… decreasing fan speed will reduce cooling capacity. Using the BETA-2 in this way provides a VERY economical and efficient way of dealing with heat within an enclosed space.

5 in stock

SKU: 15781 Category:


TrolMaster Day/Night Fan Speed Controller (BETA-2)
• Digital Display
• Built-in Photocell Sensor
• Day-Night Control

1 x   Legacy BETA-2 Controller (BETA-2)
1 x   Temperature Sensor

Input Voltage:                                     120 Volts AC
Output Switch:                                   Triac
Fuse Rating:                                         6A/250V~
AC Power Cord Length:                   1.8m
Speed Control Range:                     25-100%
Temperature accuracy:                   +/- 1F

BETA-2 Manual

Additional information

Weight 1.5 lbs
Dimensions 4 × 3.5 × 11 in



TrolMaster Agro Instruments Co., Ltd. is an agriculture technology company, offering next generation environmental controllers in the horticultural market. We have deep roots in the horticulture and Controller industries and have invented a platform that is smart and connective. With an incredible flexibility, our platform is able to cover each individual grower’s needs, from the home hobbyist to large industrial facilities. Our platform offers remote access applications that enable our customers to manage every aspect of their grow facilities from anywhere anytime. We deliver automation, control, data collection, monitoring, and optimization. The upgradability of our systems also offers the value of continual improvements. We listen to growers, build products for growers…


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