Watty Sensor Introduction of Watty Float Switch

  • Introducing Watty's float switch series.
    Includes HL-S1, HL-S3P, HL-8PS, HL-201P, HL-5-000, HL-K3F, and HL-L3.

HL-S1 For water and chemicals

  • Vertical mounting type

  • Material is all polypropylene resin

  • Ultra-compact float switch 4mm shorter than our company

  • Food Sanitation Law Compliant Products

Specification

ModelsHL-S1HL-S1B
MovementLiquid level rising ON (5.5 ± 1.5 mm)ON when the liquid level is lowered (8 ± 1.5 mm)
Operating voltage, switching current, switching capacityMax. AC100V/DC100V・Max. 0.5A・10VA/10W
Mounting shapeM8×P1.25
Operating Temperature Range-10℃~80℃
Material (Stem / Float)Polypropylene

A float switch made of all polypropylene under 27 mm flange. This is the smallest and smallest type in Japan, requiring control of the liquid level in the storage tank on the bottom or top, and is designed to substantially increase the amount of liquid used. Yes.

HL-S3P for water and chemical use

  • Stem is made of Stainless

  • Max. AC200V power supply voltage compatible

  • Compact size, only 27mm under flange

Specification

ModelHL-S3PAHL-S3PB
MovementLiquid level rise: ON (5.5±1.5mm)Liquid level fall: ON (8±1.5mm)
Operating voltage, switching current, switching capacityMax. AC200V/DC200V・Max. 0.5A・50VA/50W
Mounting shapeM8×P1.25
Operating temperature limit-10℃~80℃
Material (Stem · Float)Stem: SUS304 · Float: Polypropylene

The stem material is made of stainless steel, and the maximum working voltage is switched to 200 V AC.
Other basic operating characteristics are just the same as model HL-S1.

HL-8 PS For water ・ Chemical use

  • Horizontal mounting type

  • All Polypropylene resin material

  • Perfect for Food Sanitary Law related products (e.g. HACCP)

Specification

ModelHL-8PS
MovementLiquid level rise: ON (13±2mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100・Max. 10VA/10W
Mounting ShapeG1/4
Operating Temperature Range-10℃~80℃
Material (Stem・Float)Polypropylene

Horizontal mounting type of Polypropylene float switch. The biggest advantage of the horizontal mounting is that the sensor can be installed at the position you want to control the fluid level.

HL-201P For water ・ Chemical use

  • Vertical mounting type

  • All Polypropylene resin material

  • Compact size, only 44mm under flange

Specification

ModelsHL-201PAHL-201PB
MovementLiquid level rise: ON (16.5±2mm)Liquid level fall: ON (19±2mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max. 0.5A・10VA/10W
Mounting ShapeG1/8
Operating Temperature Range-10℃~80℃
Material (Stem・Float)Stem: Polypropylene ・ Float: Polypropylene

General-purpose type of Polypropylene float switch. This product is a little bigger than the compact type HL-S1.

HL-3 For water ・ Chemical use

  • For water, chemical detection

  • Semi-long type

Specification

ModelsHL-3AHL-3B
MovementLiquid level rise: ON (58.5 ± 2mm)Liquid level fall: ON (58.5 ± 2mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V / DC100V · Max. 10VA / 10W and Max. 0.5A
Operating Temperature Range-10℃~80℃
Material (Stem・Float)PPO ・ PP

HL-5-000 For water ・ Chemical use

  • Vertical mounting type

  • General-purpose long type

Specification

ModelsHL-5-000AHL-5-000B
MovementLiquid level rise: ON (35.5±2mm)Liquid level fall: ON (38±2mm)
Length70mm
Power supply voltage・Switching Current・Switching CapacityMax. AC200V、DC200V ・ Max. 50VA/50W
Mounting ShapeG1/8
Operating Temperature Range-10℃~80℃
Material (Stem・Float)Stem: SUS304 ・ Float: Polypropylene

HL-K3F For water ・ Chemical use

  • Vertical mounting type

  • Chemical resistant fluororesin (PTFE)

  • Adjustable mounting position

Specification

ModelsHL-K3FAHL-K3FB
MovementLiquid level rise: ON (70±1.5mm)Liquid level fall: ON (69±1.5mm)
Length108mm
Power supply voltage・Switching Current・Switching CapacityMax. AC300V/DC300V・Max 0.5A・50VA/50W
Mounting ShapeM16×P2
Operating Temperature Range-10℃~+100℃
Material (Stem・Float)PTFE ・ PTFE

HL-L3 For water ・ Chemical use

  • All wetted parts are made of Polypropylene

  • Total length of 500mm with up to 2 control points

    Sensor can be connected to Microcontroller or PLC to control the flow system

Specification

ModelHL-L3
Operating position1 control point2 control point
Upper limit20mm~465mm20mm〜425mm
Lower limit-20mm〜425mm
Distance between control points-Min 40mm
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max. 0.5A・50VA/50W
Operating Temperature Range-10℃~80℃
MaterialWetted part: PP

This is a polypropylene float switch (level switch) to which a reed switch is applied. Ideal for detecting saltwater, hypochlorous acid aqueous solution, etc. Molding was performed twice so that the magnet of the float part was not exposed, and the liquid contact part made of 100% polypropylene resin was realized. Select HL-L3 type when it can be connected to a microcontroller or PLC. For use under harsh environments such as high pressure and UV exposure, we recommend the stainless steel HL-M series.

HT Series 

  • float switch attached in a tank

  • 3 variations of tank to suit your usage: 5, 10, 20 litres

Specification

ModelsHT-0500PHT-0500MHT-1000PHT-1000MHT-2000PHT-2000M
Capacity5 litres10 litres20 litres
Tank MaterialPE
Float MaterialPPSUS304PPSUS304PPSUS304
Upper control point (full)100%
Lower control point (empty)20%15%10%
Size285×130×265H330×155×310H349×190×413H

ModelsHL-L3HL-M
MaterialPPSUS304
Power supply voltageMax. AC100V・DC100VMax. AC200・DC200V
Switching Current・Switching CapacityMax. 0.5A, 50VA or 50W
Operating Temperature Range0℃ ~ +50℃

Float switch sensor is installed in PE resin tank. 3 variations of tank is available: 5 litres, 10 litres, and 20 litres. There are also 2 variations of float switch: PP and SUS304.

Notifications can be issued when the tank is empty or full. Level monitoring and control can be done easily when working with control unit HSU-1002T.

LS-01 For water ・ Chemical use

  • Compact single level vertical mount Liquid Level Sensor

  • LS01 is used in level control, detection and monitoring.

  • For automotive, appliance, HVAC/R, and test& measurement industry

Specification

ModelLS01
Max. power supply voltageDC400V
Switching Current・Switching CapacityMax. 1.0A ・ 400VDC/100W
Operating Temperature Range-20~80℃
MaterialPP/PP

LS-02 For water ・ Chemical use

  • LS02 is used in level control, detection and monitoring.

  • For automotive, appliance, HVAC/R, and test& measurement industry

Specification

ModelLS02
Max. power supply voltageDC400V
Switching Current・Switching CapacityMax. 1.0A ・ 400VDC/100W
Operating Temperature Range-30~80℃
MaterialPP/PP

LS-03 For water ・ Chemical use

  • Horizontal mount Liquid Level Sensor

  • LS03 is used in level control, detection and monitoring.

  • For automotive, appliance, HVAC/R, and test& measurement industry

Specification

ModelLS03
Max. power supply voltageDC400V
Switching Current・Switching CapacityMax. 1.0A ・ 400VDC/100W
Operating Temperature Range-20~80℃
MaterialPP/PP

LS-02S Stainless Float Switch

  • Up to 120℃ operating temperature

  • LS-02S is used in level control, detection and monitoring.

  • For automotive, appliance, HVAC/R, and test& measurement industry

Specification

ModelLS02-S
Max. power supply voltageDC400V
Switching Current・Switching CapacityMax. 1.0A ・ 400VDC/100W
Operating Temperature Range-40~120℃
MaterialSS/SS

HL-202N For oil use

  • Vertical mounting type

  • Complete waterproof type

  • NBR float, ideal for oil detection

  • Up to cable, sensor can be placed in oil or water

Specification

ModelHL-202NAHL-202NB
MovementLiquid level rise: ON (26.5±2mm)Liquid level fall: ON (26.5±2mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max. 10VA・10W
Mounting ShapeM18×1.0
Operating Temperature Range10℃~60℃
Material (Stem・Float)Stem:POM ・ Float:NBR

HL-S2 For oil use

  • NBR float, ideal for oil detection

  • Compact size, only 27mm under flange

Specification

ModelsHL-S2AHL-S2B
MovementLiquid level rise: ON (5.5±1.5mm)Liquid level fall: ON (8±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max. 0.5A・10VA/10W
Mounting ShapeM8×1.25
Operating Temperature Range-10℃~80℃
Material (Stem・Float)Stem:POM ・ Float:NBR

Reed switch type float switch (level switch) sensor that is developed to detect oil such as kerosene and lubricating oil.
This serie has two types: liquid level rising ON type and falling level ON type.
With the same functions, please use the all-Polypropylene float switch such as HL-S1 and 201P for water and chemicals.

HL-S3N For oil use

  • NBR float, ideal for oil detection

  • Stem is made of Stainless

  • Max. AC200V power supply voltage compatible

  • To detect oil such as kerosene and lubricating oil.

  • There are 2 types: liquid level rising ON type and falling level ON type.

Specification

ModelsHL-S3NAHL-S3NB
MovementLiquid level rise: ON (5.5±1.5mm)Liquid level fall: ON (8±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC200V/DC200V・Max. 0.5A・50VA/50W
Material (Stem・Float)Stem:SUS304 ・ Float:NBR
Mounting ShapeM8×1.25
Operating Temperature Range-10℃~+120℃

Reed switch type float switch (level switch) sensor that is developed to detect oil such as kerosene and lubricating oil.
This serie has two types: liquid level rising ON type and falling level ON type.
With the same functions, please use the all-Polypropylene float switch such as HL-S1 and 201P for water and chemicals.

HL-201N For oil use

  • NBR float, ideal for oil detection

  • Please use with light load such as microcomputer or PLC

  • There are 2 types: liquid level rising ON type and falling level ON type.

Specification

ModelsHL-201NAHL-201NB
MovementLiquid level rise: ON (17.5±2mm)Liquid level fall: ON (22.5±2mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max. 0.5A・10VA/10W
Material (Stem・Float)Stem:POM ・ Float:NBR
Mounting ShapePF1/8
Operating Temperature Range-10℃~100℃

Reed switch type float switch (level switch) sensor that is developed to detect oil such as kerosene and lubricating oil.
This serie has two types: liquid level rising ON type and falling level ON type.
With the same functions, please use the all-Polypropylene float switch such as HL-S1 and 201P for water and chemicals.

HL-207 For oil use

  • NBR float, ideal for oil detection

  • Semi-long type (90mm below flange)

  • To detect oil such as kerosene and lubricating oil

  • There are 2 types: liquid level rising ON type and falling level ON type.

Specification

ModelsHL-207AHL-207B
MovementLiquid level rise: ON (87±1.5mm)Liquid level fall: ON (89.5±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC200V/DC200V・Max. 0.5A
Material (Stem・Float)Stem:POM ・ Float:NBR
Mounting ShapeM10×P1
Operating Temperature Range-10℃~80℃

Reed switch type float switch (level switch) sensor that is developed to detect oil such as kerosene and lubricating oil.
This serie has two types: liquid level rising ON type and falling level ON type.
With the same functions, please use the all-Polypropylene float switch such as HL-S1 and 201P for water and chemicals.

HL-MC1 Flood sensor

  • Ideal for flood detection

  • Metal cover protects float from error sliding

  • Covering with metal cover helps reducing damages from the outside environment

Specification

ModelsHL-MC1AHL-MC1B
MovementLiquid level rise: ON (19±1.5mm)Liquid level fall: ON (22±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V / DC100V Max. 10VA / 10W and Max. 0.5A
Operating Temperature Range-10℃〜+60℃
Material (Stem・Float)SUS304 ・ NBR


It can be used in flooded condition and the metal cover substitutes for the stay, so there is no restriction on the mounting position.

HL-K501 Stainless steel float switch

  • Vertical mounting type

  • Made of stainless steel (SUS304), sensor is resistant to harsh environments

  • High pressure resistant (3.5MPa) product

Specification

ModelsHL-K501AHL-K501B
MovementLiquid level rise: ON (10±1.5mm)Liquid level fall: ON (9±1.5mm)
Power supply voltage・Switching Current・Switching Capacity Max. AC300V/DC300V・Max. 0.5A・50VA/50W
Mounting ShapeG1/8
Operating Temperature Range-10℃~+100℃
Material (Stem・Float)SUS304 ・ SUS316L
Length57.5mm

General-purpose stainless steel type of reed switch. Ideal for use in adverse environments: high temperatures, low temperatures, high humidity, pressure (3.5MPa) or exposed to direct sunlight
for a long time. The pressure resistance is better than that of model HL-51.

HL-K504 Stainless steel float switch

  • Horizontal mounting type

  • Made of stainless steel (SUS304), sensor is resistant to harsh environments

  • High pressure resistant (3.5MPa) products

Specification

ModelsHL-K504AHL-K504B
MovementLiquid level rise: ON (42±1.5mm)Liquid level fall: ON (41±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC300V/DC300V・Max. 0.5A・50VA/50W
Mounting ShapeM12×P1.25
Operating Temperature Range-10℃~+100℃
Material (Stem・Float)SUS304 ・ SUS316L
Length75mm

General-purpose stainless steel type of reed switch. Ideal for use in adverse environments: high temperatures, low temperatures, high humidity, pressure (3.5MPa) or exposed to direct sunlight for a long time. The pressure resistance is better than that of model HL-54.

HL-K506 Stainless steel float switch

  • Vertical mounting type

  • Made of stainless steel (SUS304), sensor is resistant to harsh environments

  • Compact type of stainless steel float switch

Specification

ModelsHL-K506AHL-K506B
MovementLiquid level rise: ON (8±1.5mm)Liquid level fall: ON (8±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max 0.5A・10VA/10W
Mounting ShapeM8×P1.25
Operating Temperature Range-10℃~+100℃
Material (Stem・Float)SUS304 ・ SUS316
Length50mm

General-purpose stainless steel type of reed switch sensor.

HL-K507A Stainless steel float switch

  • Horizontal mounting type

  • For liquid with viscosity

Specification

ModelHL-K507A
MovementLiquid level fall: ON (8±1mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC250V/DC200V・Max. AC1A・40VA/DC40W
Mounting ShapeM12×P1.25
Operating Temperature Range-10℃~+100℃
Material (Stem・Float)SUS304 ・ SUS316L
Length50mm

General-purpose stainless steel type of reed switch sensor.

HL-M Stainless steel float switch

  • Sensor can be connected to Microcontroller or PLC to control the flow system

  • Option of mounting shapes between PT1 or PF1/8

  • Total length of 1000mm with up to 4 control points

Specification

ModelHL-M
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max. 0.5A・50VA/50W
Operating Temperature Range-10℃~+120℃
MaterialSUS304
Length1000mm

General-purpose stainless steel type of reed switch sensor. Ideal for use in harsh environments such as high fluid flow, high pressure, and under UV light.
However, since stainless steel float switch is easily corroded in salt water, we recommend the Polypropylene HL-L1 for applications with salt water.
HL-M can be connected to Microcontroller or PLC, at your option, to controlthe flow system. The HL-M-R type is a product that can easily control full tank
and empty tank with a single float switch. (Patented product)

HL-M-R Stainless steel float switch

  • Sensor can be connected to Microcontroller or PLC to control the flow system

  • With only a single float, this sensor can control both upper limit and lower limit

  • Total length up to 900mm

  • 3 variations of power supply voltage: DC5V、DC12V、and DC24

  • Patented product

Specification

ModelsHL-M-R-05HL-M-R-12HL-M-R-24
Power supply voltageDC5VDC12VDC24V
Switching CurrentMax 0.5AMax 0.5AMax 0.3A
Product CurrentMax 40mA
Operating Temperature Range-10℃〜+120℃
MaterialSUS304

General-purpose stainless steel type of reed switch sensor. Ideal for use in harsh environments such as high fluid flow, high pressure, and under UV light.
However, since stainless steel float switch is easily corroded in salt water, we recommend the Polypropylene HL-L1 for applications with salt water.
HL-M can be connected to Microcontroller or PLC, at your option, to controlthe flow system. The HL-M-R type is a product that can easily control full tank
and empty tank with a single float switch. (Patented product)

HL-52 Stainless steel float switch

  • Vertical mounting type

  • Made of stainless steel (SUS304), sensor is resistant to harsh environments

Specification

ModelsHL-52AHL-52B
MovementLiquid level rise: ON (7.5±1.5mm)Liquid level fall: ON (10±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC100V/DC100V・Max. 10VA/10W
Mounting ShapePF1/8
Operating Temperature Range-40℃~+120℃
Material (Stem・Float)SUS304
Length34mm

General-purpose stainless steel type of reed switch. Ideal for use in harsh environments, high temperatures, low temperatures, high humidity, pressure (Max. 1MPa), or
exposed to direct sunlight for a long time. Since the height of float is lower than that of the HL-51 (in liquid gravity 0.85 or more), the detection level from the mounting surface is very short, 7.5 mm.

HL-57 Stainless steel float switch

  • General-purpose stainless steel type

  • 300V power supply voltage compatible product

Specification

ModelsHL-57AHL-57B
MovementLiquid level rise: ON (9±1.5mm)Liquid level fall: ON (11.5±1.5mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC300V/DC300V・Max. 50VA、50W/Max. 0.5A
Mounting ShapeG1/8
Operating Temperature Range-20℃~+120℃
Material (Stem・Float)Stem:SUS304 ・ Float:SUS316
Length46mm

HL-505 Stainless steel float switch

  • Horizontal mounting type

  • Made of stainless steel (SUS304), sensor is resistant to harsh environments

Specification

ModelsHL-505
MovementLiquid level rise: ON (23±4mm)
Power supply voltage・Switching Current・Switching CapacityMax. AC300V/DC300V・Max. 0.5A・50VA/50W
Mounting ShapeNPT1/2
Operating Temperature Range-40℃~+120℃
Material (Stem・Float)SUS304

General-purpose stainless steel type of reed switch. Ideal for use in harsh environments, high temperatures, low temperatures, high humidity, pressure (Max 1 MPa)
or exposed to direct sunlight for a long time. This sensor is designed for side mounting with tapered screw. We also offer a nut tightening screw mounting option, HL-504.

HL-M-000 Stainless steel float switch

  • Vertical mounting type

  • Standard long type

  • Made of stainless steel (SUS304), sensor is resistant to harsh environments

Specification

ModelsHL-M-000DHL-M-000EHL-M-000FHL-M-000GHL-M-000HHL-M-000J
MovementLiquid level rise: ON 62mmLiquid level rise: ON 162mmLiquid level rise: ON 262mmLiquid level fall: ON 64.5mmLiquid level fall: ON 164.5mmLiquid level fall: ON 264.5mm
Length100mm200mm300mm100mm200mm300mm
Power supply voltage・Switching Current・Switching CapacityMax. AC200V/DC200V・Max 50VA/50W
Mounting ShapeM12×P1.25
Operating Temperature Range-40℃~+120℃
Material (Stem・Float)Stem:SUS304 ・ Float:SUS304

Contact Us -Contact us-

Contact Us Here