WP311 Series Immersion Type 4-20mA Water Level Transmitter (nke a na-akpọkwa submersible/Tupu-in pressure transmitter) jiri ụkpụrụ nrụgide hydrostatic iji gbanwee nrụgide mmiri tụrụ atụ na ọkwa. WP311B bụ ụdị nkewa, bụ nke kachasịnke nwere igbe nkwụsị nke na-adịghị mmiri mmiri, eriri ntinye na nyocha nyocha. Ihe nyocha ahụ na-anakwere mgbawa ihe mmetụta dị mma ma kpuchie ya nke ọma na-enweta nchebe ingress IP68. Enwere ike iji ihe mgbochi corrosion mee akụkụ imikpu, ma ọ bụ mee ka ọ sie ike iguzogide ọkụ ọkụ.