Nearly all TechGrow controllers and sensors are compatible with each other to optimize the ease of use and to make expanding affordable. Recently, TechGrow has started to provide the controllers and sensors separately so you can mix and match controllers and sensors as needed. This way, it is possible to combine three different controllers with one sensor, e.g. a CO2 Controller, a Climate Controller and a Humi Dual using just an S-4 sensor. All values that are measured by your sensor can be saved on a TechGrow Datalogger DL-1. To find out which sensor is compatible with your TechGrow controller, see the manual of your controller. Each Pro Series controller displays the current CO2-, temperature- and humidity values, but will also register min/max values.
