Radar level transmitter SITRANS LR100
for liquidsbulk solidsModbus

radar level transmitter
radar level transmitter
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for liquids, bulk solids
Modbus, HART, 4-20 mA, 2-wire
for vessels
Other characteristics
compact, wireless
Level range

Max.: 30 m (98'05")

Min.: 0 m (0'00")

Process pressure

Max.: 3 bar (43.51 psi)

Min.: -1 bar (-14.5 psi)

Process temperature

Max.: 80 °C (176 °F)

Min.: -40 °C (-40 °F)


SITRANS LR100 series are 80 GHz compact radar transmitters with Bluetooth wireless technology. Featuring a narrow beam for flexible installations in existing vessel openings – or non-intrusively through plastic vessels. The series consists of three transmitters: SITRANS LR100 for basic measurement to 8 m SITRANS LR110 with communication and hazardous approvals options and range to 15 m SITRANS LR120 with communication, longest range to 30 m and optional submergence shield for flooding protection. Benefits Easy Bluetooth® wireless technology for easy and quick setup with Siemens SITRANS mobile IQ App 80 GHz narrow beam and small size allows for the easiest installation and commissioning Custom radar microchip means signal killer conditions like condensation, buildup or fluffy solids are no match for the extreme sensitivity of the microchip, the weakest signals are still detected Zero blanking zone allows measurement range right up to the sensor and with an accuracy of 2 mm you can get rid of costly manual measurement methods Digitalization and Industry 4.0 ready with HART 7.0 or optional Modbus RTU for intelligent, value adding data locally or to the cloud
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.