Patented SPE O2� Oxygen sensor unique features – Lead-free design that complies with RoHS directive – Extended life compared to lead-type electrochemical oxygen sensors, resulting in a low cost of ownership – Leak-free design, minimizing downtime – Best EMI/RFI immunity technology for products in its class, eliminating radio interference – Easy access to pump, sensors, filter and battery compartment without exposing electronic components to potential damage – IP-65 water- and dust-resistant case – Strong, protective, concussion-proof design – Plug-in sensors: oxygen, combustibles, hydrogen sulfide, carbon monoxide or sulfur dioxide – Intuitive simple-to-operate two-button user interface with built-in pump – Pump or diffusion models available – Cradle doubles as an external battery charger and data transfer connection – Rugged housing – Large graphic display for easy overview of gas type and concentration – Rechargeable Lithium-ion battery pack provides up to 14 hours of continuous operation