Inquiry about Portable 5 Gas Detectors NEW

I am interested in purchasing the following gas detection instruments: 1. Personal 5 Gas Portable Detectors: Required quantity 2 pieces. Must measure O₂, CO₂, LEL, CO, H₂S. Personal wearable type for confined space entry. Complete with chargers, belts/clips, and valid calibration certificates. 2. Portable 5 Gas Detector with Integrated Sampling Pump: Required quantity 1 piece. Must measure O₂, CO₂, LEL, CO, H₂S. With built-in or attachable sampling pump for pre-entry testing. Include 20 Meter Sampling Hose, chargers, belts, and valid calibration certificates.