PNF Point Level Switch
Thermo Scientific* PNF Point level switch is a non-contacting, non-invasive point level switch for high or low level indication.
Highly reliable, rugged and provides cost-effective on-off control of circuits. Mounted externally on tanks, bins, hoppers, pipes, chutes or other vessels to sense the level of liquids, slurries, and solids. Consists of two components: an energy source in a steel-jacketed housing and the detector/electronics. It operates on the principle of gamma ray attenuation.