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Home > Products > Level Measurement > Water level Measurement > Submersible 12VDC RS485 4-20mA 0-5V water level sensor

Submersible 12VDC RS485 4-20mA 0-5V water level sensor

Basic Info

Model No.: HPT604, HPT604

Product Description


Submersible 12VDC RS485 4-20mA 0-5V Water Level Sensor





Product Description



Why Choose HOLYKELL HPT604 Seires?

1. 5-10 years design life, the lifelong maintenance; Import diffusion silicon core body, ≤1 ms response time;

    Its service life is 2-3 times of similar products.

2. Adopt the military printed-circuit board and wiring, with good electromagnetic compatibility;

    Anti-interference is enhanced by 300%, the stability is over 10 years.

3. The unique design of 8 hole and The unique filter design, it Can effectively filter out impurities,

    prevent blockage, prevent shock; Prevent plugging rate increases more than 80%.

4. Automatic temperature compensation, -40 ~ 85℃, autocorrection temperature drift.

5. Five layers of seamless and waterproof dustproof connection design, international level IP68;

    12 mm waterproof and oil-proof cables, the service life is more than 10 years.





About HPT604 Level Sensor

HPT604 is a submersible level sensor transducer suitable for liquid level or pressure and depth measurement. It made of 316 SS housing. Its all stainless steel, suitable for immersion in most industrial liquids and oils.The welded housing is tested in-house via a helium leak tester to ensure proper protection. Each submersible Pressure transducer features a removable nose cone at the sensor which protects the diaphragm from damage.Ventilation tube in the cable automatically compensates for changes in atmospheric pressure above the tank. The HPT604 Submersible Liquid Level Transmitter can be used to measure water level; well depth; groundwater level; bore well, underground water, river etc,.



Basic Parameters of HPT604 Level/Pressure Sensor



Submersible 12VDC RS485 4-20mA 0-5V water level sensor 

Pressure Range:

0-0.1 Bar…..50 Bar / 0-1M……..500M H2O Optional


150% F.S.

Burst Pressure

300% F.S.


≤ ±0.5%F.S; ≤ ±0.25%F.S; ≤ ±0.1%F.S

Long Stability:

Typical value: 0.1%F.S,   Maximum value: 0.2%F.S

Working Temp:

-40℃~85℃ OR -40℃~100℃(Customized)

Temperature Compensation:

-10℃~65℃ OR -20℃~80℃(Customized)

Medium compatible:

Compatible with 316L Stainless Steel

Electronic Wire:

2 Wires

3 Wires

4 wires





0~10 V

0.5~4.5 V


0-100 mV/V

RS485 Modbus RTU

Power Supply:

12~36 V DC

10~36 Vdc

15~36 Vdc

5 Vdc

10 Vdc

10~30 VDC/2.7~5.5VDC

Insulate resistance:

>100M Ω@100V

Response time:

≤1 ms (Customized)

Certificate approving:

intrinsic safety or ExdIICT6 and CE Certificate approving

EMC Standard:

electromagnetic radiation:EN50081-1/-2

electromagnetic susceptibility:EN50082-2

Pressure connection:

Various embedded structures suit to different applications  1/8, 1/4 or 1/2


a. Water tank Level Measurement and control.

b. Fuel tank level measurement and monitor (diesel, gasoline, kerosene and so on).

c. Liquid level measuring in tank, rivers, lake, sea, well, tube, underground water and so on.

d. Special occasion such as high temperature liquid (up to 100 degree C), strongly corrosion liquid level measurement (request by customized.)


Special applications request by customized





Applications of HPT604 level/ Pressure sensor
Lift station monitoring
Tank liquid level
Landfill leachate monitoring
Construction by-pass pumping
Pump control
Slurry tank liquid level

Fuel tank

Fuel tanker







Company Information


Holykell is a company specialized in manufacturing and marketing all kinds of level sensors for customers from everywhere of the world. You will benefit from our 15 years level and Pressure Measurement experiences and  18 months warranty, 0 return back rate ,0.015% maintence rate.


HOLYKELL pressure and level Instruments has been certified with ISO 9001 (2008) Enterprise Quality Management System by the United Kingdom Accreditation Service and our products are approved by many international authority institutions for the certificates of CE and RoHS, intrinsic safety explosion-proof and isolated safety explosion-proof. Our employees with the professional and high quality will make sure to provide you with high-quality products and superior services at any time and at any place. Our products are widely applied in the fields of chemical industry, petroleum, pharmacy, electricity, municipal works, environmental protection, food and paper-making.



1 Q:What detailed information do I need to provide if I want to place an order?
A:We need to know the following information: application, measurement range, output, accuracy, thread type, electric connector and other related parameters.


2 Q:Do you have any discount?

A:Yes, if you buy large QTY, please send us a email, we will give you a big discount.


3 Q:What's the delivery time for HPT604?
A:According to the specification and quantity of your order, generally 7-10 days for normal
standard products within 50pcs.


4 Q:Do you have overseas distributor?
A:Yes,we have distributors in Israel,America,United Kingdom, Austrilia and so on.


5 Q:Can we use our logo on the products?
A:Yes.We can provide OEM and sign a licensing agreement.


6 Q:Are you manufacturer or trading company?
A:We are manufacturer with 15 years of experience.Welcome to visit our company.


7 Q:Do you have any certification?
A:Yes,according to the different products,overpass CE, RoHS, ISO, Ex,Ul etc,we can offer certificates.


8 Q:How the stability of products?
A:3~5 years is ok in normal situation.


9 Q:Do you have products with HART or RS485+temperature signals?
A:Yes.we have.


10 Q:What's the means of transport?
A:Express such as TNT,Fedex,DHL,UPS, or logistics by indicator.


11.Who should I talk or send email to?
Welcome to call or email Ms. Jenny at any time, English and Chinese both okay.

Email: sales07 at

Product Categories : Level Measurement > Water level Measurement