Climate Control

AHL climate controllers range from simple heating or cooling thermostats to sophisticated controllers for your entire microclimate. Please contact AHL if you have any specific questions about any of the products listed below.

Temperature & Humidity Meters

Digital Temperature/Humidity Meter

From Sunleaves, this affordable digital meter displays current humidity and temperature levels, plus records minimum and maximum temps and humidity. Includes a remote corded temperature sensor.  $19.99

Min/Max Thermometer

Displays daily high and low temperature in your environment so you can be sure your garden is never too hot or too cold.  $19.99

Temperature & Humidity Controls

Green Air Temp-H/C Thermostat

Functions as either a Cooling Thermostat (turns on exhaust fans or air conditioners to lower temperature) or as a Heating Thermostat (turns on heaters to raise temperature). Unit will not perform both functions at the same time. Cooling/heating range: 30-100 degrees. 72-year limited warranty, 90 day warranty on electrical components.  $135.00

Green Air THC-1 Humidistat

Functions as either a Humistat (turns on humidifers to raise humidity) or a Dehumistat (turns on exhaust fans or dehumidifers to lower humidity). Unit will not perform both functions at the same time. Humidifying/dehumidifying range: 20-80% humidity. 2-year limited warranty, 90 day warranty on electrical components. $125.00

EL-500 Cooling Thermostat

Turns on fans or other cooling equipment. Works from 30-110°F. 3-month warranty.  $49.99

Climate Controllers

Green Air CT-DH-3P Climate Controller

This controller combines a cooling thermostat with a dehumidistat to turn on fans when either temperature or humidity goes too high. This unit also integrates with CO2 enrichment equipment- if the fans turn on to exchange air in the room, power to CO2 gear is cut off so CO2 is not released and wasted. Plus, a built-in photocell disables CO2 enrichment during the night cycle when plants don't need it! 2-year limited warranty, 90-day warranty on electrical components.  $240.00

Hydrofarm Deluxe Climate Controller

This unit combines cooling and dehumidifying functions with a CO2 override. It does not include a photocell. One power outlet is dedicated for constant use, such as a circulation fan, that is not affected by changes in temperature or humidity. 1-year limited warranty.  $127.99

AHL is a distributor for the entire Green Air product line, so please contact us about any controller that isn't listed. We will beat ANY store-to-door price on ANY Green Air product!