GY/VGD-200-HCN-G (0-10.000 ppm) Hydrogen resistance
GUOYUGRA GY/VGD-200-HCN-G (0-10.000 ppm) anti-hydrogen, hydrogen cyanide Detector
NBCLab takes or designs pictures, and embezzlement is strictly prohibited
[Statement] The pictures are for users' reference. Due to product upgrading or shooting level, please refer to the real object