GY/VGD-200-C3H6-G(0-2%Vol)
GUOYUGRA GY/VGD-200-C3H6-G Infrared Propylene Detector 0-2% Vol
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