Product Details
Ultrasonic Fuel Level Sensor / Clamp On Fuel Oil Tank Level Sensor
LCD Display
1. Production Overview
Ultrasonic oil level sensor is the oil quantity monitoring
equipment designed for management personnel of enterprise
motorcade. It can prevent gasoline theft by drivers, optimize
transportation cost, the driver’s driving action and assist
statistical decision, etc. The sensor uses ultrasonic probe to
detect the oil level height and carries out smart processing for
height signal of oil quantity through built-in program of the main
body. Then it sends the oil quantity information to the system
platform through GPS to generate the oil quantity report after
analysis. The sensor supports serial port and analog output and can
connect with GPS of most brands/Beidou all-in-one machine.
Therefore, the sensor can be connected with the backstage
monitoring system easily.
The products adopt non-contact measurement ultrasonic wave sensor
technology developed independently by our company and first created
domestically and are widely used in fuel consumption monitoring
projects for vehicles and sold overseas.
2. Introduction of the product
2.1. The picture of real product is shown in the following figure
2.2 Technical parameters
Operating voltage | 9~36VDC |
Maximum power consumption | 0.8W/12VDC |
Work temperature | -40℃~+85℃(Industry level) |
Working humidity | 5%~90% |
Measurement range | Determined according to materials and thickness of the container;
for steel plate of 5mm thick, the measurement scope is 5~200cm. |
Pressure bearing scope | ≤0.8kg or 0.8MPa |
Liquid measurement accuracy | ±1% |
Equipment interface | Provide output port of analog voltage/current, RS232 and RS485 data
port. |
Communication port parameters | The default baud rate is 9600. No check bit, 8-digit data bits,
1-digit stop bit and no fluid control. The liquid level value
measured by the sensor in a real-time manner is given per 10s after
smoothing processing. Note: The baud rate and interval of data transmission can be
customized. |
2.3 Product characteristics
1. High precision: The resolution ratio of oil level height
measurement of the oil level sensor is 0.1mm and the measurement
accuracy is ±0.5%. High measurement accuracy can be guaranteed at
high temperature and high cold external environment.
2. Good long-term stability: The oil level sensor adopts ultrasonic
wave measurement method and performs non contact measurement. It is
different from the float-type, pressure type, magnetic sliding
system measurement methods that adopt direct contact measurement
methods at present generally so as to avoid corrosion and pollution
of oil level sensor by fuel oil and maintain long-term stability.
3. Easy installation and maintenance: It only needs to install the
sensor probe at the lower part of external fuel tank. There is no
need to change the existing measurement system of the fuel tank, no
need to drill hole and make change on the fuel tank. At the same
time, it can guarantee normal operation of former oil meter of
vehicles.
4. Environmental sound, small energy consumption. Non contact
measurement makes it unnecessary to bore hole on or modify the fuel
tank. No dirt and pollution will be brought to the fuel oil.
5. Strong reliability: Still work normally at hostile environment;
anti-damp, anti-acid, inflaming retarding, anti-interference and
Intelligent.
The product can be used independently by using the auxiliary
display screen. It may also be used with GPS equipment by
transferring the data to backstage through GPS equipment for data
statistics, statement analysis and query.
2.4 Applicable scope
The ultrasonic oil level sensor is geared to all types of vehicles
(such as logistics vehicles, taxi, buses and passenger cars, etc)
to record the refueling, oil consumption of vehicles with
digitalization to prevent occurrence of fuel theft, avoid resources
waste, improve management efficiency and traffic safety and enhance
operation management level.
3. Product package
3.1 Description of main equipment
Port definition of user interface line
Pin position | Function | Description |
1 | Positive pole of power supply | 9~36VDC |
2 | Negative pole of power supply | |
3 | TX | RS232 transmitting terminal |
4 | RX | RS232 receiving terminal |
5 | B | RS485 B |
6 | A | RS485 A |
7 | NC | Reserved |
8 | NC | Reserved |
9 | AOUT | Analog voltage output |
10 | GND | Reference ground |
11 | NC | Reserved |
12 | NC | Reserved |
2)Definition of LED light
Green light on: the probe works normally
Red light on: the probe is abnormal (the probe line is not inserted
or probe drops off).
3.2. Description of user interface
Wire color | Function | Description |
Red | Positive pole of power supply | 9~36VDC |
Black | Negative pole of power supply | |
Yellow | TXD | RS232: transmitting terminal of the device |
Blue | RXD | RS232 receiving terminal of the device |
Brown | B | Port B of RS485 interface |
Purple | A | Port A of RS485 interface |
Green | AOUT | Analog voltage output |
Black | GND | |
Company Information
Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.
We have been specializing in manufacturing pressure, level and flow
measuring instruments and related products for 10 years. Based on
experienced technical and management personnel, through efforts of
our entire staff, we have become a professional measuring
instrument manufacturer and solution provider. And we are
continuously trying to improve product quality.
Currently, Kacise sensors have already been exported to America,
Spain, Australia, Chile and 20 other countries and regions, and
received many favorable feedbacks. Our overseas distributers are
also increasing. We regard “reasonable prices, efficient production
time and good after-sales service” as our tenet, and hope to
cooperate with more customers for mutual development.
Our Services
- Your inquiry will be replied in 24hours.
- OEM&ODM, we can help you to design and your request will be put
into product.
- Distributorship are offered for your unique design product and some
of our sensors.
- Protection for your marketting area, ideas of design and all your
private information.
- Discounts are offered based on order quantities.
Company Profile
Xi'an Kacise Optronics Co.,Ltd. is a professional manufacturer of
measuring instruments , located in China xi’an City. Since 2008,
Xi'an Kacise focused on the development and production of pressure,
level and flow measuring instruments .

We have been specializing in manufacturing pressure, level and flow measuring instruments and related products for 10 years. Based on experienced technical
and management personnel, through efforts of our entire staff, we
have become a professional measuring instrument manufacturer and
solution provider. And we are continuously trying to improve
product quality.

Xi'an Kacise is qualified with ISO 9001-2008, GJB 9001B-2009, CE,
intrinsic safety explosion-proof and isolated safety
explosion-proof certificates, etc. which ensure that our products
comply with international standards.

Kacise sensors have already been exported to America, Spain,
Australia, Chile and 20 other countries and regions, and received
many favorable feedbacks. Our overseas distributers are also
increasing. We regard “reasonable prices, efficient production time
and good after-sales service” as our tenet, and hope to cooperate
with more customers for mutual development.

Our goal is simple: to sell the best products at the best prices,
and provides industry-leading customer service. We personally get
to know each of our customers, and we know how to discover the most
valuable part of our business , to help others achieve their goals.