TechGrow S-4 CO2 Sensor (2000 ppm)

The TechGrow S-4 CO2 Sensor is an advanced sensor designed to monitor CO2 concentration, relative humidity, temperature, and light in real-time. Equipped with a high-precision NDIR sensor and automatic calibration, it provides accurate measurements every second—ideal for greenhouses, grow rooms, and hydroponic farms.

The sensor includes a built-in light sensor for automatic day/night mode switching. You can manually set the sensor to non-stop day mode using the DIP switch. Manual calibration is possible at 400 ppm in fresh air, with an additional DIP switch to prevent unwanted calibration.

Compatible with most TechGrow controllers.

Key Features

• Measures CO2, temperature, humidity, and light
• Highly precise Non-Dispersive Infrared (NDIR) sensor
• CO2 measurement updated every second
• Built-in light sensor for day/night switching
• Manual day mode option via DIP switch
• Manual calibration and test function
• Calibration with calibration gas (TechGrow only)
• DIP switch to prevent unwanted calibration

Technical Specifications

• CO2 range: 0 – 2000 ppm (increments of 10 ppm)
• CO2 accuracy: ±30 ppm
• Temperature range: -40 °C to +100 °C
• Temperature accuracy: ±0.5 °C
• Temperature response time: <2 seconds
• Humidity range: 0 - 99%
• Humidity accuracy: ±4.5% RH
• Humidity response time: <6 seconds
• CO2 measurement rate: every second
• CO2 response time (diffusion): 20 seconds
• Warm-up time: <30 seconds
• Light sensor: built-in, day mode switchable
• Connectivity: 1 UTP port
• Compatible with most TechGrow controllers
• Warranty: 6 months
• ABC functionality: No
• Software version: v1.0 (latest update: 09-07-2019)

Power Supply

• Input: From the controller
• Connection: Through the network (UTP)

Dimensions and Weight

• Product dimensions: 13.5 x 7 x 5 cm (HxWxD)
• Product weight: 120 g
• Package dimensions: 15 x 12 x 11.5 cm (HxWxD)
• Package weight: 400 g

Box Content

• TechGrow S-4 CO2 Sensor
• Mounting kit
• User manual
• UTP cable