Corrosion under insulation (CUI) is one of the costliest and unavoidable problems facing the hydrocarbon processing industry today. CUI affects the steel piping, storage tanks, container vessels and other process equipment within the plants that are subject to extreme temperature fluctuations.Insulation applied to the pipe can mitigate the thermal cycling effects. But the presence of seams, gaps or other discontinuities in the protective cladding or in the insulation layer makes them susceptible to infiltration by outside humidity or from the process environment itself.
| Measured properties | Relative humidity (RH)
Temperature (T) Direct water presence (DWP) |
| RH measurement range | 0 to 100% RH |
| RH measurement accuracy1 | ± 2% RH |
| T measurement range | -40 to 120 °C |
| T measurement accuracy1 | ± 0.2°C |
| Battery lifetime2 | 15 years |
| Cloud connectivity | Cellular 4G/5G (LTE-M or NB-IoT) |
| Identification | IEC 61406 Identification Link on printed label, QR code and NFC |
| Default sample interval | 1 hour |
| Default transmission interval | 24 hours |
| Explosion protection | Ex II 1G Ex ia IIC T4 Ga, Tamb -40°C to +80°C |
| Ingress protection | IP67 |
| Radio certification | Band 3 and 20 |
| Housing material | UV stabilized POM |
| Radio compliance
Radio Equipment Directive, 2014/53/EU |
Band 3/20
SE-RED-2002458 Ed.1D |
