Technical Specifications Sensor: NDIR sensor with ABC self-calibration function Measurement Principle: Active gas diffusion Accuracy: Refer to the selection table Response Time: <10s (30cc/min, slow flow air) Drift: <±10ppm/year Range: 0~2000ppm, or others (0~5000ppm) Output: 4~20mA, 0~10V, RS485/Modbus Relay: 2×SPST, 1A/30VDC, 0.5A/125VAC Output Load: ≤500Ω (current type), ≥2KΩ (voltage type) Power Supply: 15~28VAC/15~36VDC Display and Buttons: CDW optional large-screen LCD digital display and buttons Display Accuracy: 1ppm Operating Environment: 0~50℃, 0~95%RH (non-condensing) Storage and Transport Temperature: -20~80℃ Housing Material: Flame-retardant ABS Protection Rating: IP30 (CDW), IP65 (CDD)CATIC CO2 Sensor CDD0100 CDW0100, VC1008T, VC1009T, VC1008T-KS