Feature: 1. Wall mounted installation is adopted, with simple installation method, which is widely used in occasion where carbon monoxide concentration needs to be detected. 2. The protection level is high, and it can adapt to the detection occasion with bad site environment. 3. High quality PVC waterproof shell, wear-resistant, corrosion-resistant, long-term use. 4. Quick and sensitive response, strong anti-interference ability, high repeatability and high stability. 5. Exquisite welding circuit board, fully automatic manipulator welding process, to ensure the circuit board signal stability and accuracy. 6. The measurement accuracy is high, which can be within ± 3% FS and repeatability can be within ± 2%. 7. The equipment adopts wide voltage 10-30V DC power supply, analog signal output, 4-20mA, 0-5V, 0-10V optional. Specification: Condition: 100% Brand New Item Type: CO Transmitter Material: PVC Protection Grade: IP65 Range: 0-1000ppm Weight: Approx. 181g / 6.4oz Size: Approx. 11.7x11.5x4cm / 4.6x4.5x1.6in Main Technology Parameters: Power Supply 10-30V DC Average Power 0.18W Output Signal 4-20mA, 0-5V, 0-10V (Optional) CO Resolution 1ppm CO Accuracy ± 3% FS Zero Drift ± 3ppm Operating Temperature -20-50 ℃ Working Humidity 15-90% RH Non-Condensing Stability ≤2% Signal Value / Month Response Time ≤30S Repeatability ≤2% Output Value Pressure Range 90-110Kpa Wiring Description: Line Color Description Power Supply Brown Power Positive Black Power Negative Output Blue CO Signal Positive Green CO Signal Negative Common Problems and Solutions: No output or possible cause of output error: 1. PLC calculation error caused by range corresponding error. 2. The wiring mode is wrong or the wiring sequence is wrong. 3. The power supply voltage is not correct (for 0-10V type, it is 24V power supply). 4. The distance between transmitter and collector is too long, resulting in signal disorder. 5. PLC acquisition port is damaged. 6. The equipment is damaged. . Package List: 1 x CO Sensor2 x Screw2 x Screw Cap Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding.2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.