
Qingdao Allred Electronics Co., Ltd. Was established in 2014. We are a professional manufacturer of gas detection equipment. Our company has been certified with ISO9001, ISO14001 and ISO45001 systems, and we are committed to providing customers in industries such as oil & gas, petrochemical, mining, and environmental protection with high-performance, user-friendly, and cost-effective gas detector. We have three product lines, which are laser methane gas detector based on Tunable Diode Laser Absorption ...