The Model VHL and Model VHL Mini liquid level detection sensors feature highly effective vibrating fork structures with piezoelectric technology. The standard VHL is equipped with a compact enclosure and SPDT relay output. The VHL Mini is a miniature version equipped with solid-state 2-wire AC or 3-wire DC output for use with PLCs and control systems or where low current load handling capability is acceptable. Both the VHL and VHL Mini are cost effective units for liquids with viscosity up to 10,000cSt. The Model VHL and VHL Mini are available with a range of probe lengths. The VHL standard unit is provided with a universal AC/DC power supply as well.