"Pro-Oceanus Mini TDGP (submersible) dissolved gas sensor"@en . . "SDN:L22::TOOL1542" . "An instrument that measures the Total Dissolved Gas Pressure (TDGP) in liquids. It is designed for use in aquaculture, dam spillways, groundwater monitoring, and industrial applications. Optional accessories include: Titanium Housing - Rated up to 6000 m depth; Internal battery power; External battery pack - 76 or 134 Amp-hour capacity; Water-pumped head - Reduces biofouling and improves response rate; Mooring cage or frame with instrument brackets; Pigtail Cables with Locking Sleeves - 5, 10, 25, 50 meters, or longer. The standard plastic housing is depth rated to 600 meters. It has an operating temperature range of -2 degC to 50 degC. Accuracy +/- 0.1% (Temperature compensated from -10 to 50 degC)."@en . .