加拿大采购需求：四合一气体检测仪、气体检测仪、多气体检测仪、个人气体检测仪、个人防护设备、个人安全设备

I am reaching out to inquire about the availability of a refrigerant R170 detector that has a detection range of 0 to 100 LEL%. We are specifically interested in any models you might have that meet these requirements. Please provide details on the specifications, features, and pricing for the detectors you offer. Additionally, it's essential for us to receive a calibration certificate for R170 with the purchase of the detector. This certification is crucial for our quality assurance processes. Looking forward to your prompt response with the requested information and any other relevant details you think we should know. Thank you!