G Series Modules
 There are 6 G Series Modules which are general purpose modules. All of the modules have general purpose input and outputs and some have additional inputs for environmental probes.
The six modules in the series are the DO-G, DI-G, TDIO-G, TADIO-G, THDIO-G, and the THADIO-G.

MODULES Digital Inputs Digital Outputs Soil Moisture Sensors. Analog Inputs 
(Solar Probes)		 T-SP1
Temperature
Probes		 T/H-SP  
Temp/Humidity Probes		 Thermo-
couple
G Series - general purpose modules
DO-G   8          
DI-G 8            
TDIO-G 2 2     2    
TADIO-G 2 2   1 2    
THDIO-G 2 2       2  
THADIO-G 2 2   1   2  

(* any analog input can be used for the light sensors)  


1. All digital inputs are opto-isolated (5-24V AC or DC).
2. All digital outputs are opto-isolated 100 mA relay drivers.
3. Analog input ranges are determined by resistor values, which are set at the factory. Any analog input can be used as an input for iNetGrow Solar Probes.
4. The TCT module uses K-type thermocouples.