Hazardous area external mount level sensors for use in zones where there is a high risk of explosive gases being present.
These level sensors are screwed to the outside of a tank and have been examined and certified for use in explosion risk areas such as petrochemical process plants, landfill sites and waste water treatment works.
DPT200 Pressurised Tank Level Differential Pressure Transmitter - Pressurised tank liquid level differential pressure cell transmitter for process plant storage.
LMK331 Screw-In Ceramic Level Transmitter - Level pressure sensor with semi-flush ceramic diaphragm and stainless steel or PVDF wetted parts in ranges from 0-4 to 600mH2O gauge.
LMK351 High Overpressure Flush Level Transmitter - Flush capacitive ceramic pressure sensor for measuring corrosive and viscous liquid level from levels 0.4 metres of water up to 200 mH2O. 
DS200 Combined Hydrostatic Level Switch, Gauge and Sensor - Three in one hydrostatic level switch, digital level gauge and level sensor with level ranges from 1 mWG up to 600 mWG (3.3 to 1969 ftWG).
- 65 inch range 4-20mA output intrinsically safe IBC tote wastewater level transmitter
- 50in range 4-20mA output chemical liquid level sensor with flush diaphragm and IS approval
- 1 metre screw-in plastic level sensor for biodiesel/sulphuric acid mixture with 4 to 20 mA output
- HART flameproof (Ex d) re-scalable level transmitter for hydrostatic head up to 2 metres