Level Sensors

Level sensors determine how full or how empty a container is. Level sensors provide an output electrical signal at predetermined levels to communicate when to open or close control valves.


Level Sensor Types


The choice of sensors is usually determined by which substance is being measured, the environment in which the sensor is to used and in which position the sensor needs to be mounted. Some of the most common level sensors are:


Capacitive level switches


  • Capacitive level switches provide a basic full/empty level indication determined by the mounting position of the sensor. This type of switch is non-contact and uses a sensing field to determine liquid levels. Capacitive sensors provide accurate switching even with heavy residue build-up.

Vibrating level probes


  • Vibrating level probes use a rod or a fork that constantly produce high-frequency vibrations. When the vibrating probe comes into contact with the medium, the vibration changes and the vibrating level switch outputs a switching command. Vibrating level switches are used as overfill protection devices or low-level indicators in liquids as well as in granular and powder bulk solids.

Conductive level switches


  • Conductive level switches are sensors that use stainless steel probes with an electrical contact output to measure a specific liquid level. Used in conjunction with a level control relay to set and monitor each probe. Applications include ponds, reservoirs, sumps, pharmaceuticals, closed vessels and open tanks.

Ultrasonic level sensors


  • Ultrasonic level sensors generate ultrasonic sound pulses that are reflected by the surface of a liquid medium. The time travelled by the ultrasonic pulse is calculated by the sensor which then determines the distance of the liquid to give an accurate fill level. The ultrasonic sensor’s response is influenced by turbulence, pressure, moisture, and temperature.

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Omschrijving Prijs Device Type Mounting Type Switch Output Body Material Cable Length Communication Protocol Minimum Operating Temperature Maximum Operating Temperature Maximum AC Voltage Maximum DC Voltage Maximum Current Maximum Pressure Gasket Material Current Rating
RS-stocknr. 906-8042
Fabrikantnummer01950
FabrikantGems Sensors
105,87 €
Each
Aantal stuks
Level Switch Vertical SPST NO Stainless Steel 24in - -40°C +149°C - - - 750psi - -
RS-stocknr. 907-3937
Fabrikantnummer79999
FabrikantGems Sensors
154,54 €
Each
Aantal stuks
Level Switch Vertical SPST NO Stainless Steel 600mm - -40°C +249°C - - - 750psi - -
RS-stocknr. 616-3012
Fabrikantnummer208996
FabrikantGems Sensors
50,75 €
Each
Aantal stuks
Electro Optic Horizontal, Vertical - Polyethersulfone - - -40°C +125°C - - 18 mA 250psi - -
RS-stocknr. 907-3883
Fabrikantnummer46999
FabrikantGems Sensors
156,99 €
Each
Aantal stuks
Level Switch Vertical SPST NO Polysulfone 1.8m - -40°C +48.9°C 240V - - 50psi - -
RS-stocknr. 906-8147
Fabrikantnummer155660
FabrikantGems Sensors
80,32 €
Each
Aantal stuks
Level Switch Horizontal SPST Zinc Alloy 24in - -40°C +121°C - - - 100psi - -
RS-stocknr. 122-8431
Fabrikantnummer232178
FabrikantGems Sensors
179,00 €
Each
Aantal stuks
Electro Optic Vertical/Horizontal NC Brass 6in - -40°C +110°C - 12V - 17bar - 10 mA
RS-stocknr. 906-8125
Fabrikantnummer143585
FabrikantGems Sensors
135,07 €
Each
Aantal stuks
Level Switch Horizontal, Vertical NO Polysulfone 14in - -17.8°C +80°C - 28V 40 mA 150psi - 18 mA
RS-stocknr. 122-8434
Fabrikantnummer232181
FabrikantGems Sensors
179,00 €
Each
Aantal stuks
Electro Optic Vertical/Horizontal NC Brass 6in - -40°C +110°C - 12V - 17bar - 10 mA
RS-stocknr. 122-8433
Fabrikantnummer232180
FabrikantGems Sensors
179,00 €
Each
Aantal stuks
Electro Optic Vertical/Horizontal NC Brass 6in - -40°C +110°C - 5V - 17bar - 4 mA
RS-stocknr. 122-8419
Fabrikantnummer010-3462
FabrikantGems Sensors
383,50 €
Each
Aantal stuks
Level Switch Side SPST NO Stainless Steel 1m - -40°C +150°C - - - 35bar - -
RS-stocknr. 122-8429
Fabrikantnummer232176
FabrikantGems Sensors
179,00 €
Each
Aantal stuks
Electro Optic Vertical/Horizontal NC Brass 6in - -40°C +110°C - 5V - 17bar - 4 mA
RS-stocknr. 907-3868
Fabrikantnummer43760
FabrikantGems Sensors
177,68 €
Each
Aantal stuks
Level Switch Vertical SPST NC Stainless Steel 1.8m - -40°C +60°C - - - - - -
RS-stocknr. 616-3028
Fabrikantnummer208995
FabrikantGems Sensors
50,75 €
Each
Aantal stuks
Electro Optic Horizontal, Vertical - Polyethersulfone - - -40°C +125°C - - 18 mA 250psi - -
RS-stocknr. 616-2996
Fabrikantnummer208997
FabrikantGems Sensors
50,75 €
Each
Aantal stuks
Electro Optic Horizontal, Vertical - Polyethersulfone 150mm - -40°C +125°C - - 18 mA 250psi - -
RS-stocknr. 906-8121
Fabrikantnummer143570
FabrikantGems Sensors
127,78 €
Each
Aantal stuks
Level Switch Horizontal, Vertical NC Polysulfone 14in - -17.8°C +80°C - 28V 40 mA 150psi - 18 mA
RS-stocknr. 122-8428
Fabrikantnummer232175
FabrikantGems Sensors
179,00 €
Each
Aantal stuks
Electro Optic Vertical/Horizontal NO Brass 6in - -40°C +110°C - 5V - 17bar - 4 mA
RS-stocknr. 906-8165
Fabrikantnummer160950
FabrikantGems Sensors
62,06 €
Each
Aantal stuks
Level Switch Horizontal SPST Zinc Alloy 24in - -40°C +121°C - - - 100psi - -
RS-stocknr. 122-8432
Fabrikantnummer232179
FabrikantGems Sensors
179,00 €
Each
Aantal stuks
Electro Optic Vertical/Horizontal NO Brass 6in - -40°C +110°C - 5V - 17bar - 4 mA
RS-stocknr. 122-8418
Fabrikantnummer010-3464
FabrikantGems Sensors
387,90 €
Each
Aantal stuks
Level Switch Horizontal SPDT Stainless Steel - - -40°C +150°C - - - 60bar - -
RS-stocknr. 906-8018
Fabrikantnummer01755
FabrikantGems Sensors
99,80 €
Each
Aantal stuks
Level Switch Vertical SPST NO Stainless Steel 24in - -40°C +148.9°C - - - 275psi - -