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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제품설명 단가 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 제품 번호 776-1617
제조사 부품 번호072.51
제조사Finder
₩87,849.35
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Electrolode holder - - - - - - - - - - - - -
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제조사 부품 번호3101LP3FSCNA
제조사Delta-Mobrey
₩1,092,471.00
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Level Transmitter Top Mount 4-20mA Glass Filled Nylon - - -20°C +70°C - 30V 21.75 mA 3bar - -
RS 제품 번호 354-290
제조사 부품 번호PS31SUS3041000MM
제조사Omron
₩45,503.35
1 Kit
Kit(s)
Electrode Chassis Mount - Phenol Resin, Stainless Steel - - - +70°C - - - - - -
RS 제품 번호 892-9763
제조사 부품 번호03100-1003-0002
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₩146,893.50
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BSP Bracket Flange Mount - - - - - - - - - - - -
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제조사Siemens
₩1,704,111.85
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Ultrasonic - - PBT - - -40°C +85°C - - 20 mA - - -
RS 제품 번호 407-2368
제조사 부품 번호LA9RM201
₩125,988.65
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Electrode Cable Suspension - - - - - +100°C - - - - - -
RS 제품 번호 204-6749
제조사 부품 번호003S2
제조사Delta-Mobrey
₩420,535.15
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Gap Sensor Level Alarm Switch Horizontal, Vertical Relay Polyphenylene Sulfide 3m - -20°C +70°C - - 1 A 5bar - -
RS 제품 번호 354-335
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₩28,747.85
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Electrode Chassis Mount - Stainless Steel - - - +70°C - - - - - -
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Multi Function Ultrasonic Transmitter Vertical Relay Polycarbonate 1.2m - -35°C +60°C - 24V 20 mA 30psi Viton -
RS 제품 번호 377-9816
제조사 부품 번호VC5510PNOP
제조사Carlo Gavazzi
₩160,990.75
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Capacitance Switch Chassis Mount PNP ABS/Polycarbonate 1.5m - 0°C +50°C - 30V 100 mA - - -
RS 제품 번호 493-7192
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₩1,972,148.70
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Ultrasonic - - PBT - - -40°C +85°C - - 20 mA - - -
RS 제품 번호 889-1374
제조사 부품 번호DS14-00
제조사Flowline
₩588,271.50
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Controller, Ultrasonic Level Switch Vertical - Polycarbonate 1.2m - -35°C +60°C 24V 24V - 30psi Viton 1 A
RS 제품 번호 869-7680
제조사 부품 번호ILSE-G0100-5
제조사Cynergy3
₩285,838.60
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Pressure Chassis Mount 4-20mA Stainless Steel - - - - - 32V 28 mA 20bar - -
RS 제품 번호 185-9881
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제조사Delta-Mobrey
₩805,914.75
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Liquid Level Switch Top Mount SPST Aluminium Bronze - - - +210°C - - 2 A dc, 5 A ac 18bar Non Asbestos Sheet -
RS 제품 번호 889-1393
제조사 부품 번호DX10-00-8FT
제조사Flowline
₩508,282.20
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Ultrasonic Level Sensor Vertical - Polycarbonate 1.2m - -35°C +60°C - 24V 15 (Nominal) mA 30psi Viton -
RS 제품 번호 746-7514
제조사 부품 번호1SVR450056R0100
제조사ABB
₩16,933.75
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Electrode Vertical - High Grade Steel, Stainless Steel - - - - - - - - - -
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제조사 부품 번호PS61.XXAGPHKMXX
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Radar Vertical - Plastic - - -40°C +80°C - - 20 mA 2bar - -
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제조사 부품 번호LP01
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Electrode Free - Stainless Steel, Vinyl - - - +70°C - - - - - -
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제조사 부품 번호DL24-00
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RS 제품 번호 780-0175
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Level Switch Vertical - Stainless Steel 1m - -20°C +120°C - - 500 mA 10bar - -