9 Apparatus and instruments for monitoring the environment, land and/or infrastructure; apparatus and instruments for monitoring and measuring atmospheric conditions, water conditions, land conditions and infrastructure conditions; apparatus and instruments for monitoring salinity, water content, pore pressure, temperature, heat dissipation, suction, movement, ph levels, and density; probes for monitoring and measuring salinity, water content, pore pressure, temperature, heat dissipation, suction, movement, ph levels, and density; apparatus and instruments for monitoring and measuring conditions and changes in and around infrastructure including power plants, bridges, roads, pipelines and tailings storage facilities; electronic apparatus and instruments for the monitoring of environmental contaminants; remote monitoring apparatus and systems; safety monitoring apparatus; real time data processing apparatus; sensors for data input and output apparatus; data storage apparatus and instruments; warning alarms and apparatus; telecommunications apparatus and instruments; measuring probes for monitoring environmental conditions; subsurface installations to monitor salinity, water content, pore pressure, temperature, heat dissipation, suction, movement, ph levels, and density; subsurface monitoring system for monitoring environmental measures; tailings dam monitoring system; infrastructure monitoring system; positive and negative pore pressure monitoring device