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== Product Overview ==
== Product Overview ==
<div class="dim">


''Brief 1–2 paragraph introduction to the product per IEC/IEEE 82079-1.''
The LIGO PRO fuel level sensor represents a significant advancement as a third-generation product, having undergone extensive mechanical refinements to enhance both performance and durability. These improvements enable the sensor to better cope with issues such as water resistance and electrical insulation, especially compared to its predecessors. Notably, this product adheres to the highest standards of water and chemical resistance, including its ability to withstand water ingress according to the IP69K standard.


'''What to fill in:'''
Another key feature is the sensor's base, constructed from synthetic plastic, which has been cleverly designed to flex and conform seamlessly to the curved surfaces of fuel tanks without the need for multiple rubber gaskets to prevent oil spillage.
* Product name, category, primary function
* Key technology and target environment
* Value proposition for B2B customers


'''Example structure:''' "The [Product Name] is a [type] device designed for [primary application]. It features [key technology] and is built for [target environment]."
Furthermore, the product is manufactured with high-quality materials, ensuring reliability in extreme temperature environments. It effectively withstands the impacts of chemicals, gasoline, and UV radiation without succumbing to any form of degradation or corrosion. This makes the sensor an ideal choice for applications in harsh temperature conditions and those requiring exceptional durability.


== Key Features ==
*High accuracy up to 99.5%.
*Operating input voltage range from 7V-50V
*Internal isolation voltage up to 2500V.
*Possibility of cutting down or extending up to 6000mm (optional)
*Wide operating temperature range from -40°C to +85°C.
*A filter protecting the probe from dregs and water.
*Ingress protection rating IP69K
*Noise filter and temperature compensation system.
*Installation and configuration software on multiple application devices: phone, laptop, etc.
*Anti-vibration spring when moving.
*Quick installation, safety guaranty.
== Applications ==
* Trucks, container cars, excavators, trains…
* Boats, barges.
* Electric generators.
* Industrial oil storage tanks and stationary storage tanks.
* Factories, industrial zones.
* Fuel storage tanks in agricultural machines and maritime transportation…
== Product Variants / Ordering Information ==
=== LIGO PRO Order Code ===
<div style="display:flex;gap:20px;justify-content:center;flex-wrap:wrap;align-items:flex-start;">
<div>
{| class="wikitable" style="text-align:center;margin:0;"
|-
! Code !! colspan="2" | Description
|-
| rowspan="2" | AF || Analog || (0…9VDC)
|-
| Frequency || 500…2000Hz
|-
| RS232 || colspan="2" | RS232
|-
| RS485 || colspan="2" | RS485
|}
</div>
</div>


== Key Features ==
<div>
<div class="dim">
{| class="wikitable" style="text-align:center;margin:0;"
|-
! Code !! Description
|-
| L7 || 700mm
|-
| L10 || 1000mm
|-
| L15 || 1500mm
|-
| Other length || Contact manufacturer
|}
</div>
 
</div>


''Bullet list of top 5–7 differentiating features.''
For Example: '''700mm length, output signal AF''' sensor has the order code: '''LIGO PRO - AFL7'''


'''What to fill in:'''
=== Products and Accessories ===
* Each bullet = 1 key feature with measurable value
* Focus on: accuracy, connectivity, durability, compatibility
* Examples of features to cover:
** Measurement specifications (accuracy, range, response time)
** Connectivity (Bluetooth/WiFi/Cellular protocol + version)
** Power (battery life, voltage range)
** Environmental rating (IP, operating temperature)
** Compatibility (telematics platforms, software)


<div style="text-align:center;">
[[File:LIGO-PRO-accessories.png|frameless|677px]]
<div style="font-style:italic; color:#555;">Sensor and all the accessories</div>
</div>
</div>


== Applications ==
{| class="wikitable" style="text-align:center;"
<div class="dim">
|-
! No. !! Description !! Qty (pcs)
|-
| 1 || style="text-align:left;" | LIGO PRO Fuel Level Sensor. Standard lengths: 700, 1000, 1500mm (for other customized lengths, please contact the manufacturer) || 01
|-
| 2 || style="text-align:left;" | Oil filter || 01
|-
| 3 || style="text-align:left;" | Gasoline resistant rubber gasket || 01
|-
| 4 || style="text-align:left;" | Anti-vibration spring when moving || 01
|-
| 5 || style="text-align:left;" | 2A Fuse protection || 01
|-
| 6 || style="text-align:left;" | Self-drilling screw M4.8x32mm || 04
|-
| 7 || style="text-align:left;" | Rivet and screw M5x20mm || 04
|-
| 8 || style="text-align:left;" | Sealing cord || 01
|-
| 9 || style="text-align:left;" | Plastic wire sealing connector || 01
|-
| 10 || style="text-align:left;" | 7m PVC coated signal wire || 01
|-
| 11 || style="text-align:left;" | Quick installation manual || 01
|}
 
== Technical Specifications ==
 
Technical specifications of the LIGO PRO product
 
{| class="wikitable" style="text-align:center;"
|-
! Parameter !! AF !! RS232 !! RS485
|-
| style="text-align:left;" | Standard length (L), mm || colspan="3" | 700, 1000, 1500...up to 6000 mm
|-
| style="text-align:left;" | Measuring error, % || colspan="3" | ± 0.5 %
|-
| style="text-align:left;" | Output signal || Analog (0…9V), Frequency (500- 2000Hz) || RS232 || RS485
|-
| style="text-align:left;" | Baud rate, bit/sec || 9600 || colspan="2" | 2400, 4800, 9600, 19200, 38400, 57600, 115200.
|-
| style="text-align:left;" | Power supply (DC input voltage, V) || colspan="3" | 7…50
|-
| style="text-align:left;" | Maximum power consumption, mA || colspan="3" | 20
|-
| style="text-align:left;" | Dielectric strength of galvanic isolation, min (V) || colspan="3" | 2500
|-
| style="text-align:left;" | Ingress protection rating || colspan="3" | IP69K
|-
| style="text-align:left;" | Operating temperature, °C || colspan="3" | -40...+85
|-
| style="text-align:left;" | Maximum allowed humidity level, % || colspan="3" | 100
|-
| style="text-align:left;" | Resolution, bit || colspan="3" | 12
|-
| style="text-align:left;" | Digital reading range corresponding to the minimum level measurement value || Analog (0...8); Frequency (500...1500 Hz) || 0 || 0
|-
| style="text-align:left;" | Digital reading range corresponding to the maximum level measurement value || Analog (1...9V); Frequency (1000...2000 Hz) || 4095 || 4095
|-
| style="text-align:left;" | Average sampling period, (s) || colspan="3" | 0...255
|-
| style="text-align:left;" | Message interval, (s) || Continuous || 1...60 || 1...60
|-
| style="text-align:left;" | Absolute error in temperature measurement within the entire temperature measuring range, °С || colspan="3" | ±2
|-
| style="text-align:left;" | Average service life, years (minimum) || colspan="3" | 10
|}


''Typical use cases and industries the product serves.''
=== Technical Characteristics ===


'''What to fill in:''' bullet list of applications (4–6 items)
'''1. Voltage output signal depending on the probe length'''
* Each bullet = 1 specific industry/use case
* Common categories:
** Transportation/Fleet (trucks, buses, trailers)
** Telecom (backup generators, base stations)
** Industrial (storage tanks, process monitoring)
** Marine (bunker fuel, hydraulic systems)
** Mining (heavy equipment, refueling stations)


<div style="text-align:center;">
[[File:LIGO-PRO-output-voltage-chart.png|frameless|800px]]
<div style="font-style:italic; color:#555;">Figure 1. Dependence of the voltage output signal on the fuel level</div>
</div>
</div>


== Product Variants / Ordering Information ==
Operating voltage range from (0…9V).
<div class="dim">


''Table of all product SKUs available for ordering.''
'''2. Frequency output signal depending on the probe length'''


'''What to fill in:''' table with columns:
<div style="text-align:center;">
* '''Model''' — short product code (e.g., LIGO-AIR-STD)
[[File:LIGO-PRO-output-frequency-chart.png|frameless|800px]]
* '''Part Number''' — internal SKU (e.g., SKU-001)
<div style="font-style:italic; color:#555;">Figure 2. Dependence of the frequency output signal on the probe length</div>
* '''Description''' — variant differences (cable length, certification, etc.)
</div>
* '''Region''' — geographic availability (Global, EU/APAC, US only, etc.)


'''Common variants:''' Standard / Extended / Industrial-grade / ATEX-certified
Operating frequency range from (500-2000Hz).


'''3. RS232/RS485 output signal depending on the probe length'''
<div style="text-align:center;">
[[File:LIGO-PRO-output-digital-chart.png|frameless|800px]]
<div style="font-style:italic; color:#555;">Figure 3. Dependence of the RS232/RS485 output signal on the probe length</div>
</div>
</div>


== Technical Specifications ==
Measurement range from (0-4095)
<div class="dim">
 
=== Overall Dimensions and Detailed Descriptions ===
 
<div style="text-align:center;">
[[File:LIGO-PRO-dimensions.png|frameless|866px]]
<div style="font-style:italic; color:#555;">Figure 4. Overall dimensions of LIGO PRO fuel level sensor</div>
</div>


''Detailed technical parameters of the product.''
<div style="text-align:center;">
[[File:LIGO-PRO-parts-description.png|frameless|767px]]
<div style="font-style:italic; color:#555;">Figure 5: Description of sensor's parts</div>
</div>


'''What to fill in:''' specification table with columns Parameter / Value / Unit / Descriptions
'''Description:'''


'''Parameters to cover:'''
{| class="wikitable"
* '''Electrical''': Operating voltage, Operating current (avg/peak/sleep), Power consumption
|-
* '''Performance''': Measurement range, Accuracy, Resolution, Response time, Sampling rate
! No !! Content
* '''Wireless''' (if applicable): Protocol, Frequency band, Output power, Receiver sensitivity, Range
|-
* '''Environmental''': Operating temperature, Storage temperature, Humidity, Ingress protection (IP)
| style="text-align:center;" | 1 || Oil filter
* '''Mechanical''': Dimensions (L × W × H), Weight, Mounting interface
|-
* '''Service life''': Expected years at typical operation
| style="text-align:center;" | 2 || Sensing probe
|-
| style="text-align:center;" | 3 || Gasoline resistant rubber gasket
|-
| style="text-align:center;" | 4 || Sensor's head containing sensing circuit board
|-
| style="text-align:center;" | 5 || Twisted steel stainless steel plastic conduit
|-
| style="text-align:center;" | 6 || Connector IP67
|-
| style="text-align:center;" | 7 || Anti-vibration spring
|-
| style="text-align:center;" | 8 || Self-drilling M4.8x32mm x 4pcs or M5x20 Rivet nut x4pcs
|}


'''Optional sub-sections:''' If product has many specs, split into <code><nowiki>=== Performance ===</nowiki></code>, <code><nowiki>=== Electrical ===</nowiki></code>, <code><nowiki>=== Wireless ===</nowiki></code>, <code><nowiki>=== Environmental ===</nowiki></code>, <code><nowiki>=== Memory ===</nowiki></code>, <code><nowiki>=== Mechanical Dimensions ===</nowiki></code>, <code><nowiki>=== Interface / Connectivity ===</nowiki></code>, each with its own table.
=== Connector ===


<div style="text-align:center;">
[[File:LIGO-PRO-connector.png|frameless|660px]]
<div style="font-style:italic; color:#555;">Figure 6. The detail of connector</div>
</div>
</div>


== Compliance and Certifications ==
'''Pins'''
<div class="dim">


''Regulatory certifications and standards compliance.''
{| class="wikitable" style="text-align:center;"
|-
! PIN !! DESCRIPTION
|-
| 1 || style="text-align:left;" | GND
|-
| 2 || style="text-align:left;" | NC (Not connected)
|-
| 3 || style="text-align:left;" | 7…50 VDC
|-
| 4 || style="text-align:left;" | TXD/B-
|-
| 5 || style="text-align:left;" | Analog or Frequency
|-
| 6 || style="text-align:left;" | RXD/ A+
|}


'''What to fill in (sub-sections):'''
==== 1. Connecting LIGO PRO to an external device ====


* '''Wireless / Radio''' — bullet list of certifications by region:
'''+ RS232/ RS485'''
** CE RED (EU) — certificate number
** FCC Part 15 (US) — FCC ID
** IC (Canada) — IC number
** Bluetooth SIG QDID (if BLE)
** RoHS 3


* '''Environmental''' — standards compliance:
{| class="wikitable" style="text-align:center;"
** RoHS 3 (Directive 2015/863/EU)
|-
** REACH (EC 1907/2006)
! Wire Colour !! Description
** WEEE (Directive 2012/19/EU)
|-
** IP rating per IEC 60529
| Black || style="text-align:left;" | GND (Ground) (V-)
|-
| Yellow || style="text-align:left;" | RXD/A+
|-
| Blue || style="text-align:left;" | TXD/B-
|-
| Red || style="text-align:left;" | 7…50VDC
|}
<div style="text-align:center;">
[[File:PRO-RS232.jpg|frameless|1000px]]
<div style="font-style:italic; color:#555;">Figure 7. Wiring diagram of RS232 and RS485 output signals</div>
</div>
'''+ AF (Analog & Frequency)'''


* '''Mechanical / Safety''' — test standards:
{| class="wikitable" style="text-align:center;"
** IEC 60068-2-6 — Vibration
|-
** IEC 60068-2-27 — Shock
! Wire Colour !! Description
** IEC 60068-2-30 — Damp heat
|-
** IEC 61010-1 — Electrical safety
| Black || style="text-align:left;" | GND (Ground) (V-)
|-
| Yellow || style="text-align:left;" | Out (Analog/Frequency)
|-
| Red || style="text-align:left;" | 7…50VDC
|}


* '''Industry-Specific''' (remove if N/A):
<div style="text-align:center;">
** ATEX / IECEx — for hazardous environments
[[File:LIGO-PRO-wiring-AF.png|frameless|1000px]]
** MID — Measuring Instruments Directive
<div style="font-style:italic; color:#555;">Figure 8. Wiring diagram of Analog and Frequency output signals</div>
** Automotive E-Mark — for vehicle applications
</div>
** Marine certification — DNV / ABS / Lloyd's Register


* '''Warranty''':
LIGO fuel sensor is protected against reverse-polarity and overvoltage. This feature helps to protect circuit boards against incorrect connections and it can withstand a continuous over-voltage condition (up to 50V in LIGO-SP product and 100V in LIGO-SP-PRO product) and short-circuit. Please avoid connecting sensor to a power supply which is unstable, usually fluctuates, or has a voltage higher than the recommended voltage range above.
** Standard warranty period (years from shipment)
 
** Extended warranty options
Using a fuse coupled with one pole (-) or (+) is recommended for over-voltage protection purpose in case the car equipment is too old or the power cannot be guaranteed. It isadvisable to use fuses which have the rated current less than 2A.
** NOT covered items
 
** Void conditions
== Compliance and Certifications ==
** Cross-reference to [[Warranty Terms and Conditions]]
 
Refer to [[LIGO PRO Certification & Approvals]] for current certificate status.''


</div>
<div class="noprint">
<div class="noprint">
== Related Documents ==
== Related Documents ==
''Cross-references to other documents.''
''Cross-references to other documents.''

Latest revision as of 02:26, 24 June 2026

Product Overview

The LIGO PRO fuel level sensor represents a significant advancement as a third-generation product, having undergone extensive mechanical refinements to enhance both performance and durability. These improvements enable the sensor to better cope with issues such as water resistance and electrical insulation, especially compared to its predecessors. Notably, this product adheres to the highest standards of water and chemical resistance, including its ability to withstand water ingress according to the IP69K standard.

Another key feature is the sensor's base, constructed from synthetic plastic, which has been cleverly designed to flex and conform seamlessly to the curved surfaces of fuel tanks without the need for multiple rubber gaskets to prevent oil spillage.

Furthermore, the product is manufactured with high-quality materials, ensuring reliability in extreme temperature environments. It effectively withstands the impacts of chemicals, gasoline, and UV radiation without succumbing to any form of degradation or corrosion. This makes the sensor an ideal choice for applications in harsh temperature conditions and those requiring exceptional durability.

Key Features

  • High accuracy up to 99.5%.
  • Operating input voltage range from 7V-50V
  • Internal isolation voltage up to 2500V.
  • Possibility of cutting down or extending up to 6000mm (optional)
  • Wide operating temperature range from -40°C to +85°C.
  • A filter protecting the probe from dregs and water.
  • Ingress protection rating IP69K
  • Noise filter and temperature compensation system.
  • Installation and configuration software on multiple application devices: phone, laptop, etc.
  • Anti-vibration spring when moving.
  • Quick installation, safety guaranty.

Applications

  • Trucks, container cars, excavators, trains…
  • Boats, barges.
  • Electric generators.
  • Industrial oil storage tanks and stationary storage tanks.
  • Factories, industrial zones.
  • Fuel storage tanks in agricultural machines and maritime transportation…

Product Variants / Ordering Information

LIGO PRO Order Code

Code Description
AF Analog (0…9VDC)
Frequency 500…2000Hz
RS232 RS232
RS485 RS485
Code Description
L7 700mm
L10 1000mm
L15 1500mm
Other length Contact manufacturer

For Example: 700mm length, output signal AF sensor has the order code: LIGO PRO - AFL7

Products and Accessories

Sensor and all the accessories
No. Description Qty (pcs)
1 LIGO PRO Fuel Level Sensor. Standard lengths: 700, 1000, 1500mm (for other customized lengths, please contact the manufacturer) 01
2 Oil filter 01
3 Gasoline resistant rubber gasket 01
4 Anti-vibration spring when moving 01
5 2A Fuse protection 01
6 Self-drilling screw M4.8x32mm 04
7 Rivet and screw M5x20mm 04
8 Sealing cord 01
9 Plastic wire sealing connector 01
10 7m PVC coated signal wire 01
11 Quick installation manual 01

Technical Specifications

Technical specifications of the LIGO PRO product

Parameter AF RS232 RS485
Standard length (L), mm 700, 1000, 1500...up to 6000 mm
Measuring error, % ± 0.5 %
Output signal Analog (0…9V), Frequency (500- 2000Hz) RS232 RS485
Baud rate, bit/sec 9600 2400, 4800, 9600, 19200, 38400, 57600, 115200.
Power supply (DC input voltage, V) 7…50
Maximum power consumption, mA 20
Dielectric strength of galvanic isolation, min (V) 2500
Ingress protection rating IP69K
Operating temperature, °C -40...+85
Maximum allowed humidity level, % 100
Resolution, bit 12
Digital reading range corresponding to the minimum level measurement value Analog (0...8); Frequency (500...1500 Hz) 0 0
Digital reading range corresponding to the maximum level measurement value Analog (1...9V); Frequency (1000...2000 Hz) 4095 4095
Average sampling period, (s) 0...255
Message interval, (s) Continuous 1...60 1...60
Absolute error in temperature measurement within the entire temperature measuring range, °С ±2
Average service life, years (minimum) 10

Technical Characteristics

1. Voltage output signal depending on the probe length

Figure 1. Dependence of the voltage output signal on the fuel level

Operating voltage range from (0…9V).

2. Frequency output signal depending on the probe length

Figure 2. Dependence of the frequency output signal on the probe length

Operating frequency range from (500-2000Hz).

3. RS232/RS485 output signal depending on the probe length

Figure 3. Dependence of the RS232/RS485 output signal on the probe length

Measurement range from (0-4095)

Overall Dimensions and Detailed Descriptions

Figure 4. Overall dimensions of LIGO PRO fuel level sensor

Figure 5: Description of sensor's parts

Description:

No Content
1 Oil filter
2 Sensing probe
3 Gasoline resistant rubber gasket
4 Sensor's head containing sensing circuit board
5 Twisted steel stainless steel plastic conduit
6 Connector IP67
7 Anti-vibration spring
8 Self-drilling M4.8x32mm x 4pcs or M5x20 Rivet nut x4pcs

Connector

Figure 6. The detail of connector

Pins

PIN DESCRIPTION
1 GND
2 NC (Not connected)
3 7…50 VDC
4 TXD/B-
5 Analog or Frequency
6 RXD/ A+

1. Connecting LIGO PRO to an external device

+ RS232/ RS485

Wire Colour Description
Black GND (Ground) (V-)
Yellow RXD/A+
Blue TXD/B-
Red 7…50VDC

Figure 7. Wiring diagram of RS232 and RS485 output signals

+ AF (Analog & Frequency)

Wire Colour Description
Black GND (Ground) (V-)
Yellow Out (Analog/Frequency)
Red 7…50VDC

Figure 8. Wiring diagram of Analog and Frequency output signals

LIGO fuel sensor is protected against reverse-polarity and overvoltage. This feature helps to protect circuit boards against incorrect connections and it can withstand a continuous over-voltage condition (up to 50V in LIGO-SP product and 100V in LIGO-SP-PRO product) and short-circuit. Please avoid connecting sensor to a power supply which is unstable, usually fluctuates, or has a voltage higher than the recommended voltage range above.

Using a fuse coupled with one pole (-) or (+) is recommended for over-voltage protection purpose in case the car equipment is too old or the power cannot be guaranteed. It isadvisable to use fuses which have the rated current less than 2A.

Compliance and Certifications

Refer to LIGO PRO Certification & Approvals for current certificate status.

Cross-references to other documents.

Revision History

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