CO2 Valve Controller for Grow RoomModel: 1600P-VKey Words:Dual-Channel Remote CO2 Sensor ProbeBuilt-in photocell sensorWaterproof treatment Control Solenoid Valve INQUIRY DETAILS CO2 Fan Controller for Grow RoomModel: 1600P-FKey Words:Dual-Channel Remote CO2 Sensor ProbeBuilt-in photocell sensorWaterproof treatment Control Ventilation Fan INQUIRY DETAILS CO2 Controller for Grow TentModel: GrowPT02Key Words:Dual Chanel CO2 SensorBuilt-in photocell sensorWaterproof treatment Control AC, Valve, Dehumidifer INQUIRY DETAILS