Reliable fuel monitoring, now configurable with just a smartphone!
The LIGO-PRO-BLE Fuel Level Sensor, developed by SOJI Electronics, measures liquid fuel and non-conductive liquids in vehicle tanks and storage. It transmits data via Analog, Frequency, RS232, or RS485 to external devices. The new product was created to meet the growing demand in the transport telematics market for improved design reliability, data accuracy, and easier installation.
Featuring Bluetooth Low Energy (BLE), the sensor makes installation and configuration quicker, easier, and more convenient. With a heavy-duty metal structure for added protection and IP69K waterproof standards, it offers improved durability against interference, shock, and vibration
Key features
• High accuracy up to 99,5%.
• Wide range input voltage: 6 – 40V
• Galvanic isolation up to 2500V
• Can be optionally cut off or prolonged up to 6000mm.
• Wide operating temperature range from -40°C to +85°C.
• Built-in Anti-mud oil filter and anti-vibration springs.
• IP69K waterproof standard.
• Integrated BLE technology for configuration via
smartphone (available on App Store and Google Play).

Compatible with popular trackers
LIGO-PRO-BLE Fuel Level Sensor is compatible with popular GLONASS/GPS trackers from brands such as Teltonika, Xirgo Global, Suntech, Queclink, Coban, Concox…
PARAMETER
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RS232
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Standard length (L), mm
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700, 1000, 1500 up to … 6000 mm
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Measuring error, %
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± 0.5
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Output signal
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RS232
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Baud rate, bit/sec
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2400, 4800, 9600, 19200, 38400, 57600, 115200
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Power supply (DC input voltage, V)
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|
Supply protection (Over-voltage 100 VDC for 2 minutes. Reverse polarity)
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Yes
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Maximum power consumption, mA
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20
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Waterproof standard (Ingress protection rating, IP)
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IP69K
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OPERATING CONDITIONS:
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OPERATING CONDITIONS:
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Operating temperature, C
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-40 … +85
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Maximum allowed humidity level,%
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100
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Resolution, bit
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12
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Digital reading range corresponding to the minimum level measurement value
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0
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Digital reading range corresponding to the maximum level measurement value
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4095
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Average sampling period, s
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0…255.evel
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Message interval, s
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1…255
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Absolute error in temperature measurement within the entire temperature measuring range, °С
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±1
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Bluetooth specs
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Bluetooth 5.1, IEEE 802.15.4-2006, 2.4 GHz,
-95 dBm sensitivity, +8 dBm TX Power
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Average service life, years (expected)
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10
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MANUAL & DOCUMENTATION
DRIVER & SOFWARE
STANDARD PACKAGE CONTAINS
LIGO PRO BLE – RS232L7
▪️ 03 pcs fuel level sensor LIGO PRO BLE – RS485L7
▪️ 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
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- 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
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MORE OPTIONS
LIGO PRO BLE – RS232L10
- 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
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- 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
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LIGO PRO BLE – RS232L15
- 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
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- 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
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