Product Category

Liquid Level Sensor


Liquid Level Sensor That Is Unaffected by the Color of the Pipe or Liquid









8 to 11 mm

12 to 26 mm


1 mm max.

1.5 mm max.

Detectable object

Liquid *

Repeat accuracy

±0.2 mm max.

Differential travel
 (Reference value, varies
 with pipe size and liquid.)

0.6 to 5 mm

0.3 to 3 mm

Power supply voltage
 (operating voltage range)

12 to 24 VDC (10.8 to 30 VDC), ripple (p-p): 10% max.

Current consumption

12 mA max.

Control output

Load current

100 mA max.


1 V max. (Load current: 100 mA, Cable length: 2 m)

Sensing liquid position

Indented mark position (For details, refer to Datasheet)


Detection indicator (orange)

Ambient temperature range

Operating: 0 to 55°C (with no icing or condensation),
 Storage: -10 to 65°C (with no icing or condensation)

Ambient humidity range

Operating/Storage: 25% to 85% (with no condensation)

Temperature influence

±4 mm of detection level at 23°C in the temperature range of 0 to 55°C
 (with pure water or 20% saline solution)
 (±6 mm for E2K-L13MC[] with pure water and a pipe diameter of 8 mm)

Voltage influence

±0.5 mm of detection level at the rated voltage in rated voltage ±10% range

Insulation resistance

50 MΩ min. (at 500 VDC) between current-carrying parts and case

Dielectric strength

500 VAC, 50/60 Hz for 1 min between current-carrying parts and case

Vibration resistance

Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y,
 and Z directions

Shock resistance

Destruction: 500 m/s2 3 times each in X, Y, and Z directions

Degree of protection

IP66 (IEC)

Connection method

Pre-wired Models (Standard cable length: 2 m)

Weight (packed state)

Approx. 70 g


Case, Cover

Heat-resistant ABS

Cable clamp



Two bands, Four slip-proof tubes, One driver for sensitivity adjustment,
 Instruction manual

* Stable detection will not be possible in the following cases. Confirm detection capability with the Sensor installed before actual application.
 1. If the specific inductive capacity or the specific electric conductivity of the liquid is too low, the liquid position may not be detected since this sensor is a capacitive sensor.
 2. If the quantity of liquid is too low or the change in quantity is too low in comparison to the change in liquid level because the pipe is too thin or the walls of the pipe are too thick
 3. If there is a viscous film on the inner pipe wall, large quantities of foam or air bubbles, or excessive buildup of dirt on the inner pipe wall