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.
Extra advantages
- 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.
Setting up from the smartphone.
Your employees don’t need to carry laptops anymore, as the configuration can now be done simply by using the user-friendly mobile application installed on your phone.

Compatible with popular trackers
“LIGO PRO – Series ” fuel level sensor is compatible via with popular GLONASS/GPS trackers of such brands as Teltonika, Xirgo Global, Suntech, Queclink, Coban, Concox…
PARAMETER
|
AF
|
RS232
|
RS485
|
Standard length (L), mm
|
700, 1000, 1500 up to … 6000 mm
|
700, 1000, 1500 up to … 6000 mm
|
700, 1000, 1500 up to … 6000 mm
|
Measuring error, %
|
± 0.5
|
± 0.5
|
± 0.5
|
Output signal
|
Analog (0…9V),
Frequency (500- 2000Hz)
|
RS232
|
RS485
|
Baud rate, bit/sec
|
9600
|
2400, 4800, 9600, 19200, 38400, 57600, 115200
|
2400, 4800, 9600, 19200, 38400, 57600, 115200
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Power supply (DC input voltage, V)
|
|
|
|
Maximum power consumption, mA
|
20
|
20
|
20
|
Dielectric strength of galvanic isolation, min (V)
|
2500
|
2500
|
2500
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Waterproof standard (Ingress protection rating, IP)
|
IP69K
|
IP69K
|
IP69K
|
Operating temperature, °C
|
-40 … +85
|
-40 … +85
|
-40 … +85
|
Maximum allowed humidity level,%
|
100
|
100
|
100
|
Resolution, bit
|
12
|
12
|
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
|
0…255
|
0…255
|
Message interval, s
|
Continuous
|
1…60
|
1…60
|
Absolute error in temperature measurement within the entire temperature measuring range, °С
|
±2
|
±2
|
±2
|
Bluetooth specs
|
Bluetooth 5.1, IEEE 802.15.4-2006, 2.4 GHz, -95 dBm sensitivity, +8 dBm TX Power
|
Average service life, years (expected)
|
10
|
10
|
10
|
MANUAL & DOCUMENTATION
DRIVER & SOFWARE
STANDARD PACKAGE CONTAINS
LIGO PRO L7
▪️ 03 pcs fuel level sensor LIGO PRO L7
▪️ 03 pcs 7M cable or options
▪️ 03 accessory bag (Each bag includes: 01pcs Gasoline resistant rubber gasket; 01 pcs Oil filter; 01 pcs Anti-vibration spring; 01 pcs Fuse 2A; 02 pcs Sealing cord; 04 pcs Rivet and screw M5x20mm; 04 pcs Self-drilling screw M4.8x32mm) .
▪️ Packaging box with LIGO branding
- Box size for 2 products (cm): 79 x 18 x13 | Weight (kg): 2,9
- Box size for 3 products (cm): 79 x 18 x13 | Weight (kg): 3,9
|

- Box size for 10 products (cm): 80 x 38 x 33 | Weight (kg): 14,5
- Box size for 15 products (cm): 80 x 38 x 33 | Weight (kg): 19,5
|
MORE OPTIONS
LIGO PRO L10
- Box size for 2 products (cm): 109 x 18 x13 | Weight (kg): 3,2
- Box size for 3 products (cm): 109 x 18 x13 | Weight (kg): 4,5
|
- Box size for 10 products (cm): 110 x 39 x 33 | Weight (kg): 16
- Box size for 15 products (cm): 110 x 398 x 33 | Weight (kg): 22
|
LIGO PRO L15
- Box size for 2 products (cm): 159 x 18 x13 | Weight (kg): 3,7
- Box size for 3 products (cm): 159 x 18 x13 | Weight (kg): 5
|
- Box size for 10 products (cm): 160 x 39 x 33 | Weight (kg): 18,5
- Box size for 15 products (cm): 160 x 39 x 33 | Weight (kg): 25
|