LMK 458 - Submersible pressure transmitter for Marine & Offshore


The hydrostatic probe LMK 458 has been developed for measuring level in service and storage tanks and is as a consequence of the certification by Germanischer Lloyd predestined for shipbuilding and offshore applications.

A permissible operating temperature of up to 125°C and the possibility to use the device in intrinsic safe areas enable to measure the pressure of various fluids under extreme conditions. The basis for the LMK 458 is a capacitive ceramic sensor element which offers a high overload resistance and medium compatibility.

Product details

Minimum pressure range
0.04 bar
Maximum pressure range
20 bar
Vacuum Resistant
Gauge, Sealed Gauge and Absolute
4-20mA / 2-wire
Supply Voltage
9 - 32V dc (14 - 28V dc for Ex-protection)
standard: ≤±0.25% FSO option: for PN ≥0.6 bar: ≤±0.1% FSO
Sensor Type
Ceramic Capacitive
Process Connection
Nose cone, Threaded connection for flange mounting
Electrical Connection
TPE or FEP vented cable with strain relief
IP Rating
IP68 Fully submersible
Cable sheath material
Diaphragm Material
Ceramic Al2O3 96 %, optional Al2O3 99.9 %
Process Connection Material
Stainless steel 1.4404 (316L), optional Copper-Nickel-alloy (CuNi10Fe1Mn)
Temperature Range
-25 to +125°C (depending on sheath material)
Optional Extra's
Process Connection, Electrical Connection, housing material, O ring type, ATEX approval, threaded backend for pipe or conduit mounting
ATEX Approval Ex ia, Germanischer Lloyd (GL), Det Norske Veritas (DNV), China Classification Society (CCS)
Product Downloads

+44 (0)1635 291 600

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SGS ISO 9001 UKAS 2014 TCL LR-1