Featuring 0.1 mm resolution, APP configuration, and Bluetooth transmission up to 100 m, this capacitive fuel level sensor ensures accurate and convenient monitoring. IP69 waterproof construction delivers dependable performance in harsh environments.Compatible with gasoline, diesel, and other non-conductive liquids. Choose this smart capacitive level sensor for accurate and secure monitoring.
Specification
| Model |
ATO-CPM212 |
| Accuracy |
99.50% |
| Resolution |
0.1 mm |
| Battery |
Life |
Maximum 6 years |
| Capacity |
2 × 2700 mAh, Li-SOCl₂ replicable industrial battery |
| Working Temperature |
-55 ~ 85℃ |
| Bluetooth |
Bluetooth Version |
BLE 5.4 |
| Transmission Mode |
iBeacon Broadcasting |
| Broadcasting Interval |
1s as default, programmable |
| Range of wireless connection (direct sight without interference and obstacles) |
Maximum 100 meters |
| Transmission power |
-96 ~ 4 dBm |
| Millimeter Wave Radar |
Average Current |
50 uA |
| Working Temperature |
-40 ~ 85℃ |
| Transmission power (EIRP) |
10 dBm |
| Detection Range |
0.2 ~ 5 meters |
| Detection Resolution |
0.2 m |
| Horizontal Detection Angle |
100 degrees |
| Vertical Detection Angle |
120 degrees |
| Tilt Angle Sensor |
0~180 degrees |
| Temperature Sensor |
-40~120 ℃ |
| Working Environment |
Working Temperature |
-40℃~85℃ |
| Storage Temperature |
-45℃~85℃ |
| Capacitive Tube Range |
0~1000 mm (support cutting at site) |
| Dimensions (mm) |
98 × 45 × (L),L: length of the measuring tube part, 10~100 cm |
| Weight |
1 kg when L=70 cm |
| Waterproof Class |
IP69 |
| Explosion-proof Class |
Ⅱ 1 G Ex ia IIB T6 Ga |
Features
- Wireless Design: The wireless capacitive level sensor design eliminates exposed wiring, helping prevent physical damage while ensuring more secure and reliable fuel monitoring.
- Bluetooth 5.4 Communication: The wireless capacitive fuel level sensor enables wireless connection to compatible gateways and terminal devices without additional wiring. Low-energy Bluetooth BLE 5.4 technology provides reliable data transmission while reducing power consumption, helping extend battery life and support long-term fuel monitoring.
- Long Battery Life: Equipped with a high-capacity built-in battery, this capacitive fuel level sensor delivers up to 7 years of continuous operation, minimizing battery replacement frequency.
- Anti-Theft Radar Detection: An built-in millimeter wave radar detects nearby human activity around the tank, enabling the fuel level sensor to identify potential fuel theft risks and enhance asset security.
- Built-In Temperature & Tilt Sensors: Integrated temperature and tilt sensors provide additional operational data, improving the accuracy and stability of capacitive level sensorunder varying environmental and operating conditions.
- Cuttable Capacitive Tube Design: The adjustable capacitive tube can be easily cut to fit different tank depths, allowing customized installation while maintaining precise and reliable liquid level sensing.
- Rugged IP69 Protection: Built for demanding environments, this capacitive liquid level sensor operates reliably from -40°C to 85°C and features an IP69 waterproof rating for dependable outdoor and industrial performance.
- Broad Liquid Compatibility: Compatible with gasoline, diesel, LPG, and most non-conductive liquids, this capacitive fuel level sensor is ideal for most types of trucks.
Structural Diagram

Applications
Suitable for aluminum, plastic, iron, and stainless steel tanks, this capacitive fuel level sensor accurately monitors gasoline, diesel, LPG, and other non-conductive liquids, providing reliable level measurement across various applications.

Tips: How does the radar-equipped capacitive fuel level sensor prevent fuel theft?
The radar-equipped version of this wireless capacitive fuel level sensor features a built-in millimeter wave radar for human detection within a 0.2–5 m range. When suspicious activity is detected near the tank, the capacitive fuel level sensor broadcasts an alarm via Bluetooth iBeacon, allowing a compatible monitoring system to trigger real-time theft alerts and enhance fuel security.