Wireless Livello Series 2000 threads into top of tank, tote, or small ground tank, measuring level with ultrasonic or submersible DP sensor. With push of button, it gathers level data and posts it via cellular network to private website. Series 3000 gathers data from max 16 external sensors and 8 external 4-20 mA devices, posting it to site. Series 3800 gathers data from 2 external 4-20 mA devices, displaying it locally and posting it to site.