SECURUS/Hardware/Fill level and water level sensor

Level sensors for tanks, containers and water levels

Level sensors measure distance or pressure to provide information about tank content or water level. Laser, ultrasound or submersible probes are selected for the container, medium and installation point. SECURUS shows histories and reports configured limits.

Milesight EM400-TLD, ToF laser distance sensor
Milesight

EM400-TLD

ToF laser distance sensor

Measures the fill level of containers and waste bins without contact using a laser.

Measuring range
2–350 cm, ±2 cm
Power supply
Battery, 2 × 9,000 mAh (ER26500)
Battery life
up to 10 years (10-min interval)
Protection rating
IP67
Dimensions
118 × 65 × 30 mm
Mounting
Screws on a flat surface
Technical datasheet (PDF)
Milesight EM400-MUD, multifunctional ultrasonic sensor
Milesight

EM400-MUD

Multifunctional ultrasonic sensor

Ultrasonic distance measurement for containers, bins and parking spaces.

Measuring range
3–450 cm, ±(1 cm + 0.3 %)
Power supply
Battery, 2 × 9,000 mAh (ER26500)
Battery life
up to 10 years (10-min interval)
Protection rating
IP67
Dimensions
118 × 65 × 32.5 mm
Technical datasheet (PDF)
Milesight EM400-UDL, ultrasonic level sensor for liquids
Milesight

EM400-UDL

Ultrasonic level sensor for liquids

Measures liquid levels in tanks, cisterns and basins without contact.

Measuring range
W050: 30–500 cm, W100: 50–1,000 cm
Accuracy
±1 % of full scale
Power supply
Battery, 2 × 9,000 mAh (ER26500)
Battery life
up to 10 years (10-min interval)
Protection rating
IP67
Dimensions
118 × 65 × 80 mm
Technical datasheet (PDF)
Milesight EM500-SWL, submersible probe for water levels
Milesight

EM500-SWL

Submersible probe for water levels

Measures the water level via the water pressure at the bottom, for example in wells, cisterns, basins and pump sumps.

Measuring range
0–3 m, 0–5 m or 0–10 m water column, others on request
Accuracy
±0.5 % of full scale
Cable
1–1.5 m longer than the measuring range
Power supply
Battery, 1 × 19,000 mAh (ER34615)
Battery life
up to 10 years (10-min interval)
Protection rating
Transmitter IP67, probe IP68
Technical datasheet (PDF)
Dragino DDS75-LB, ultrasonic distance sensor
Dragino

DDS75-LB

Ultrasonic distance sensor

Measures distances and fill levels using ultrasound, for example in containers, shafts and bins.

Measuring range
28–750 cm (flat objects)
Accuracy
±(1 cm + 0.3 %)
Power supply
Battery 8,500 mAh (Li-SOCl₂) or solar with rechargeable battery (LS variant)
Battery life
up to 5 years
Protection rating
IP66
Datasheet from the manufacturer
Dragino DDS20-LB, fill level through the container wall
Dragino

DDS20-LB

Fill level through the container wall

Mounts to the outside of the container base and measures the liquid level by ultrasound through the wall, without opening the container.

Measuring range
2–200 cm liquid height
Accuracy
±(5 mm + 0.5 %)
Mounting
under the container, no drilling
Power supply
Battery 8,500 mAh (Li-SOCl₂) or solar with rechargeable battery (LS variant)
Battery life
up to 5 years
Protection rating
IP66
Technical datasheet (PDF)

Technical data according to the manufacturer's datasheet, battery life under the stated conditions. All devices shown transmit via LoRaWAN. In addition to these examples, we also use LoRaWAN devices from other manufacturers depending on requirements.

Match the measurement method to the vessel and medium

Clear measurement path, minimum distance and container shape are important selection criteria. Foam and internal structures may affect distance readings. For level monitoring, first establish whether centimeters, percentages or calculated volume are needed.

Relevant use cases
FAQ

Sensor selection questions

Does a percentage automatically equal tank volume in liters?

No. Volume calculations must account for container geometry and usable measurement range.

Which device is right for you?

We select the right device with you, integrate it into SECURUS and deliver it ready for use.