Gas Clip - Model MGC Simple -Multi Gas Clip Simple Portable Multi-Gas Detector

No charging ever! No calibration needed! Detects H₂S, CO, O₂ & combustible gases (LEL). Save time never having to charge or service your portable multi-gas detector! Reliably test for H₂S, CO, O₂ & combustible gases (LEL)) with this simple-to-use & simple-to-maintain detector. Just turn it on & have worry free assurance of protection against toxic gases 24/7 for two full years.