+44.1732.771.023 U.K.    +1.905.844.6681 Canada    +86.22.86996881 China
Standex-Meder Electronics
Standex Products - Fluid Level Sensor

Fluid Level Sensors

Standex manufactures fluid level sensors using magnetic and conductive sensing technology to best suit customer requirements. Our unique designs are helping companies to gain competitive market advantages. Our conductive fluid level sensors have false full protection and current level shift to indicate fluid level. Custom molding capabilities allow us to design and build float and sensors to suit any fluid level sensing application. That's one reason why we're the partner of choice for automotive fluid sensing projects.


Sensor and Magnetic Solution Catalog

Sensor and Magnetic Solution Catalog

Sensor and Magnetic Solution Catalog

93: Fluid Level Sensors
Custom Conductive Fluid Level Sensors Brochure

Custom Conductive Fluid Level Sensors Brochure

Download the Custom Conductive Fluid Level Sensors brochure.

94: Fluid Level Sensors
R12431 Series

R12431 Series

  • For blow or injection molded bottles
  • Side mount design uses separate seal grommet
  • Form A (normally open) and Form B (normally closed) operation
  • Switch rated 0.5A/100V/10VA max
  • Internal snubber resistor
  • Connector meets requirements of Packard part number12162289
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
95: Fluid Level Sensors
R12449 Series

R12449 Series

  • For blow or injection molded bottles
  • Side mount design uses separate seal grommet
  • Form A (normally open) and Form B (normally closed) operation
  • Switch rated 0.5A/100V/10VA max
  • Internal snubber resistor
  • Mates with Toyota connector P/N 90980-11068
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
96: Fluid Level Sensors
R12456 Series

R12456 Series

  • For blow or injection molded bottles
  • Side mount design uses separate seal grommet
  • Form A (normally open) and Form B (normally closed) operation
  • Switch rated 0.5A/100V/10VA max
  • Internal snubber resistor
  • Mates with Yazaki 7283-6434-40
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
97: Fluid Level Sensors
R12347 Series

R12347 Series

  • For blow or injection molded bottles
  • Bottom mount design
  • Form A (normally open) and Form B (normally closed) operation
  • Switch rated 0.5A/100V/10VA max
  • Internal snubber resistor
  • Mates with Ford E57B14A464AA
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
98: Fluid Level Sensors
R12349 Series

R12349 Series

  • For blow or injection molded bottles
  • Side mount design
  • Form A (normally open) and Form B (normally closed) operation
  • Switch rated 0.5A/100V/10VA max
  • Internal snubber resistor
  • Mates with Ford E57B14A464AA
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
99: Fluid Level Sensors
R12072 Series

R12072 Series

  • For blow or injection molded bottles
  • Top mount/ snap in design
  • Form A (normally open) operation
  • Switch rated 1.5A/200V/50VA max
  • Adjustable sensing point up to 18 inches from top of bottle
  • Standard termination-0.25 inch open spade
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
100: Fluid Level Sensors
R12372 Series

R12372 Series

  • For blow or injection molded bottles
  • Indication delay feature
  • Bottom mount design uses separate seal grommet
  • Form A (normally open) and Form B (normally closed) operation
  • Switch rated 1.5A/200V/50VA max
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
101: Fluid Level Sensors
R12421 Series

R12421 Series

  • For blow or injection molded bottles
  • Indication delay feature
  • Bottom mount design uses separate seal grommet
  • Form A (normally open) and Form B (normally closed) operation
  • Switch rated 1.5A/200V/50VA max
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
102: Fluid Level Sensors
R12406 Series

R12406 Series

  • For blow or injection molded bottles
  • Indication delay feature
  • Bottom mount design with power harness
  • Form A (normally open) and Form B (normally
  • closed) operation
  • Switch rated 1.5A/200V/50VA max
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
103: Fluid Level Sensors
LS100 Series

LS100 Series

  • Passive device with no internal electronics
  • Driven from external electronics
  • Suitable for most conductive fluids with minimal particulate matter
  • May be operated from user's electronics in a "pulsing" mode to reduce electrolysis
  • May be operated with a bipolar pulsing current from user electronics, eliminating electrolysis
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
104: Fluid Level Sensors
LS200 Series

LS200 Series

  • False Full Protection and current level shift to indicate fluid level
  • Available as a two-wire device
  • Capable of substantial miniaturization
  • Equipped with Standex patented "bias ring" concept
  • Suitable for most conductive fluids
  • Suitable in fluids with substantial particulate matter
  • Operated by a DC current pulse supplied from user's electronics; current draw indicates fluid level
  • Optional LED available for local fluid level indication
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
105: Fluid Level Sensors
LS300 Series

LS300 Series

  • Sensitivity Shift / False Full Protection
  • Full electronics and substantial probe miniaturization
  • Equipped with Standex patented "bias ring" concept
  • Available as a three-wire device
  • Suitable for most conductive fluids
  • Suitable in fluids with substantial particulate matter
  • Internal electronics used to eliminate electrolysis
  • Input is 9V to 30 V DC
  • Provided with a switched output; 30 volt open collector sync, TTL or CMOS
  • Optional LED available for local fluid level indication
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
106: Fluid Level Sensors
R12468 Series

R12468 Series

  • External sensor for injection molded bottles
  • Form A or Form B operation with separate float
  • Bottom mount with o-ring seal
  • Switch rated 1.5A /200V/50VA max
  • Mates with Packard P/N 12052641
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
107: Fluid Level Sensors
B12469 Series

B12469 Series

  • Float / magnet assembly operates with R12468 sensor assembly
  • Float locates in the bottle assembly
  • Foamed Polypropylene Plastic
  • Specific gravity per application
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
108: Fluid Level Sensors
R12481 Series

R12481 Series

  • External sensor for injection molded bottles
  • Form A or Form B operation with separate float
  • Bottom mount with o-ring seal
  • Switch rated 0.5A/100V/10VA max
  • Mates with Packard P/N 12052641
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
109: Fluid Level Sensors
B12482 Series

B12482 Series

  • Float / magnet assembly operates with R12481 sensor assembly
  • Float locates in bottle assembly
  • Foamed Polypropylene Plastic
  • Specific gravity per application
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
110: Fluid Level Sensors
R11774 Series

R11774 Series

  • External sensor for injection molded bottles
  • Form A (normally open) operation with
  • separate float
  • Switch rated 0.5A/100V/10VA max
  • Snap lock mounting
  • Integral connector
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
111: Fluid Level Sensors
R12180 Series

R12180 Series

  • External sensor for injection molded bottles
  • Form A (normally open) operation with
  • separate float
  • Switch rated 0.5A/100V/10VA max
  • Snap lock mounting
  • Integral connector
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
112: Fluid Level Sensors
B12450 Series Float

B12450 Series Float

  • Float / magnet assembly operates with
  • R11774 and R12180 series sensors
  • Float locates in bottle assembly
  • Foamed PP
  • Operates with fluid SG at 0.79 min
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
113: Fluid Level Sensors

FPS-B Series

  Check Distributor Stock

  • Commercial or residential installation to primary or auxiliary condensate drain pans
  • Includes a custom bracket that clips onto primary or auxiliary drain pans
  • Proven magnetic low voltage reed switch technology
  • All install components supplied
  • Quick and hassle free install and service
  • UL508, NEC and IMC compliant
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
114: Fluid Level Sensors

FPS-L Series

  Check Distributor Stock

  • Commercial or residential installation to primary or auxiliary condensate drain plugs.
  • Includes a custom elbow pipe fitting to accommodate easy installation to primary or auxiliary drain plugs.
  • Proven magnetic low voltage reed switch technology
  • All install components supplied
  • Quick and hassle free install and service
  • UL508, NEC and IMC compliant
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
115: Fluid Level Sensors

FPS-T Series

  Check Distributor Stock

  • Commercial or residential installation to primary condensate drains vertical and horizontal, including a close coupled plugged or vertical drain option
  • Includes two ˘Do-It-All÷ custom tee pipe fittings for easy and flexible installation options
  • Proven magnetic low voltage reed switch technology
  • All install components supplied
  • Quick and hassle free install and service
  • UL508, NEC and IMC compliant
  • Contact Standex Electronics for more information on this or to discuss your specific requirement
116: Fluid Level Sensors