Carbon Dioxide CO2 Meter Controller & Monitor CO2 Detector with Split-Type Remote Sensor and 4.6 Meter Long Cable Dual Channel Low Drift NDIR Sensor for Greenhouse, Residential, Hydroponics - ‎‎Gain Express Holdings Ltd., AQM-356_US

• Ready-to-install CO2 (Carbon Dioxide) Controller with dual-channel low drift NDIR sensor and 4.6-meter long cable for accurate CO2 monitoring in various environments. Features a "Hold Home" function for foolproof operation and 3 built-in main parameters (Ambient CO2, Set Center value, Set Zone Value) constantly displayed on the screen. CO2 Measurement Range: 0~5000ppm with accuracy at 0~3000ppm: ±50ppm or ±5% of reading, whichever is greater. Accuracy over 3000ppm: ±7% Equipped with a built-in Day/Night Photo-Cell sensor and chart with variable time zoom levels. No initial setup or calibration required. the controller is ready to use out of the box. Compact dimensions: Sensor Unit - 1533327mm (6.01.31.1inch). Control Unit - 19514544mm (7.75.71.7inch). Weight: 700g (24.7oz) for easy handling and installation., Manufacturer: ‎‎Gain Express Holdings Ltd.