LIGO PRO BLE Datasheet: Difference between revisions
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| 1 || LIGO Fuel Level Sensor. Standard lengths: 700, 1000, and 1500 mm (for other customized lengths, please contact the manufacturer) || 01 | | 1 || LIGO Fuel Level Sensor. Standard lengths: 700, 1000, and 1500 mm (for other customized lengths, please contact the manufacturer) || style="text-align:center; vertical-align:middle;" | 01 | ||
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| 2 || Oil filter || 01 | | 2 || Oil filter || style="text-align:center; vertical-align:middle;" | 01 | ||
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| 3 || Gasoline-resistant rubber gasket || 01 | | 3 || Gasoline-resistant rubber gasket || style="text-align:center; vertical-align:middle;" | 01 | ||
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| 4 || Anti-vibration spring when moving || 01 | | 4 || Anti-vibration spring when moving || style="text-align:center; vertical-align:middle;" | 01 | ||
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| 5 || 1A Fuse protection || 01 | | 5 || 1A Fuse protection || style="text-align:center; vertical-align:middle;" | 01 | ||
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| 6 || Self-drilling screw M4.8 × 32 mm || 04 | | 6 || Self-drilling screw M4.8 × 32 mm || style="text-align:center; vertical-align:middle;" | 04 | ||
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| 7 || Rivet and screw M5 × 20 mm || 04 | | 7 || Rivet and screw M5 × 20 mm || style="text-align:center; vertical-align:middle;" | 04 | ||
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| 8 || Sealing wire || 02 | | 8 || Sealing wire || style="text-align:center; vertical-align:middle;" | 02 | ||
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| 9 || 7 m signal wire || 01 | | 9 || 7 m signal wire || style="text-align:center; vertical-align:middle;" | 01 | ||
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| 10 || Quick installation manual || 01 | | 10 || Quick installation manual || style="text-align:center; vertical-align:middle;" | 01 | ||
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Revision as of 10:31, 9 June 2026
Product Overview
LIGO-PRO-BLE Fuel Level Sensor is produced and developed by SOJI Electronics JSC. The device is designed to measure the level of liquid fuel and other non-conductive liquids in vehicle tanks and stationary fuel storage, applicable in different fields. The measured values will be transmitted to an external device as an output signal such as Analog, Frequency, RS232, or RS485 to connect to an external device.
The purpose of creating a new product was to satisfy the increasing demand of the transport telematics market for improved reliability of the design, data, and ease of installation. Unlike its predecessors, the new sensor is integrated with Bluetooth Low Energy (BLE) making installation more convenient, easier, and faster.
In addition, the new heavy-duty metal structure helps increase protection against electrostatic, electromagnetic and conducted interference. LIGO-PRO-BLE is also designed with IP69K waterproof standards and better shock and vibration resistance.
Key Features
- High accuracy up to 99.5%.
- Wide range input voltage: 6–40 V.
- Galvanic isolation up to 2500 V.
- Can be optionally cut off or prolonged up to 6000 mm.
- 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).
Applications
- Trucks, excavators, heavy construction machines…
- Marine vessels and electric generators.
- Off-highway machinery including high-temperature & vibration environments.
- Industrial oil storage tanks or stationary storage tanks.
Product Variants / Ordering Information
10 main items with specific quantities are described below:
| No. | Description | Qty (pcs) |
|---|---|---|
| 1 | LIGO Fuel Level Sensor. Standard lengths: 700, 1000, and 1500 mm (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 | 1A Fuse protection | 01 |
| 6 | Self-drilling screw M4.8 × 32 mm | 04 |
| 7 | Rivet and screw M5 × 20 mm | 04 |
| 8 | Sealing wire | 02 |
| 9 | 7 m signal wire | 01 |
| 10 | Quick installation manual | 01 |
Technical Specifications
| Parameter | AF | RS232 | RS485 |
|---|---|---|---|
| Standard length (L), mm | 700, 1000, 1500 … up to 6000 | ||
| Measuring error, % | ± 0.5 % | ||
| Output signal | Analog (0–9 V) | RS232 | RS485 |
| Baud rate, bit/sec | 2400, 4800, 9600, 19200, 38400, 57600, 115200 | ||
| Power supply (DC input voltage, V) | 6–40 V | ||
| Supply protection (Over-voltage 100 VDC for 2 minutes, Reverse polarity) | Yes | ||
| Maximum power consumption, mA | 20 | ||
| Waterproof standard (Ingress protection rating, IP) | 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 V) | 0 | 0 |
| Digital reading range corresponding to the maximum level measurement value | Analog (1…9 V) | 4095 | 4095 |
| Average sampling period, s | 0…255 | ||
| Message interval, s | Continuous | 1…255 | 1…255 |
| Absolute error in temperature measurement within the entire temperature measuring range, °С | ± 1 | ||
| 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 |
Dimensions
Wiring Connection
AF (Analog & Frequency)
RS232
RS485
Connector
AF / RS232
| No. | Description | Color of the wire |
|---|---|---|
| 1 | GND | Black |
| 2 | NC (Not connected) | NC |
| 3 | VCC (6–40 V) | Red |
| 4 | TXD | Blue |
| 5 | Analog Output | White |
| 6 | RXD | Brown |
RS485
| No. | Description | Color of the wire |
|---|---|---|
| 1 | GND | Black |
| 2 | RS485 (B) | Green |
| 3 | VCC (6–40 V) | Red |
| 4 | TXD | Blue |
| 5 | RS485 (A) | Yellow |
| 6 | RXD | Brown |
Compliance and Certifications
No certification or compliance information was provided in the source datasheet (LIGO-PRO-BLE Datasheet V1.0.1). Refer to Product Certification & Approvals for current certificate status.
Revision History
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