GSH50 mine sulfur dioxide sensor Technical parameters: Measuring range :0-50PPM product features imported electrochemical sensor to measure the concentration range of high concentrations of 50ppm alarm, over-range alarm, low battery alarm LED flashes red and green, 95dB buzzer high strength ABS engineering plastic, anti-drop 1.8 m ergonomic design, feel better through MA, explosion-proof certification, with international high-end quality main technical parameters of the project parameters Measuring range :0-50ppm Sampling Method: Diffusion-type sensors: imported electrochemical sensor sensor direction : outward, to avoid dust accumulation caused by sensor failure Standard host (including sensors, lithium batteries) calibration adapter charger leather seat Jining Branch-mining equipment, large favorably, please call