The iGS-061 is CO² controller with display and day/night detection easy to install and set up. Known for its reliability and easy setup options. The iGS-061 comes with a high temperature shut-off to protect your plants from overheating: C02 enrichment is stopped when the temperature set point is reached. It provides useful operating information by displaying error messages, counseling and alarm condition.

Control Module

The iGS-061 controls your CO² tank or gas burner allows to increase or to decrease the CO2 concentration during day (only during the lighting period). The air sampling is optimized by means of an integrated fan. The air sampling is optimized by means of an integrated fan and the internal CO2 sensor reads values from 0 to 5000 ppm

  • Displays both CO² concentration and temperature
  • Adjustable CO² set point from 100 to 4,900 ppm
  • Precise CO² sensor: ±75 ppm
  • High temperature shut-off function adjustable from 50 to 122°F (10 to 50°C)
CO² Enrichment With Highest Priority And Temperature Control

The iGS-061 is a standalone CO² controller that does not manage ventilation simultaneously with CO² level enhancement and some CO² may be vented outside while CO² enrichment is going on. Many gardeners use iGS-061 with an air conditioning unit or a reverse relay (iLS120-OFF) that stops the intake-exhaust fan(s) while CO² is enhanced. The air conditioning unit can be controlled by an iGS-021, an iGS-110 or an iGS-111.


The climate controllers can control large capacity air conditioning unit through an iGS-DCS relay (other voltage then 110-120 V). You can also increase your cooling, heating, humidifying and dehumidifying capacity by plugging to a climate controller's auxiliary outlet an iLS120-ON to control additional equipment on different circuit (adds 15 A, 120 V).

  • 1 outlet controlling CO² equipment 120V
  • 15 A, 2 HP load capacity


Controller Functions
Integrated Controller No
Digital display Yes
Info, Error or Alarm messages Yes
Day/Night Detection Photocell
Day and Nigth Setpoints Day only
Integrated Fan for Air Sampling Magnetic levitation sleeve bearing, 7 cfm
Auxiliary Devices Control
Controlled Actions Increase or decrease CO² concentration
Controlled Auxiliary Outputs 1 auxiliary outlet
Simultaneously Controlled Equipment 1 (CO² control)
Temperature Control
Temperature Display Yes
Temperature Differential Fix (2°C)
Safety Temperature Limit Yes
Adjustable Temperature Limit 50 - 122°F (10 - 50°C)
CO² Control
CO² Concentration Display Yes
CO² Power Indicator Yes
Dangerous CO² Concentration Alert Yes
CO² Sensor Accuracy ± 75 ppm
CO² Sensor Range 0 to 5000 ppm
Adjustable CO² Concentration Setpoint 400 to 4900 ppm
CO² Concentration Differential Dynamic
Altitude Correction Yes
Controlled Equipment for CO² CO² tank or gas burner or fans
Electrical Specification
Power Supply 15 VDC 400 mA
Auxiliary Power Supply 120 V – 60 Hz – 15 A
Output Maximum Current 120 V, 15 A, 2 HP
AC Adapter Power Supply 2V DC center positive 800 mA min
Operating Conditions 0 to 60 °C, 0 to 95 % non-condensing RH