QIUSUO HCN Gas Detector Fix Hydrogen Cyanide Gas Detector with Measuring Range 0-10ppm Resolution 0.01ppm Repeatability ≤ ±1% Sound Light Alarm Wall-Mounted Installation 4-20mA and RS485 Output

QIUSUO HCN Gas Detector Portable Hydrogen Cyanide Gas Detector with Accuracy ≤±3% F.S.Resolution 0.01ppm Measuring Range 0-50ppm Over 100 000 Sets Of Stored Data Built-in Micro Sampling Pump

QIUSUO Hydrogen Cyanide Gas Detector with Measuring Range 0 to 50ppm Resolution 0.1ppm L-Alarm 5ppm H-Alarm 10ppm