This sensor features an integrated sealed structure with an IP65 protection rating, making it suitable for various complex operating conditions. It incorporates intelligent temperature compensation and integrates lightning protection and short-circuit protection at both input and output ports, ensuring stable data and reliable system security. A high-brightness LCD screen displays real-time liquid level data, while parameter settings are intuitive and convenient.
Specification
| Model |
ATO-TLS-2M9 |
| Accuracy |
±0.5%FS |
| Measuring Range |
0~20m (Selected according to actual measuring range) |
| Operating Temperature |
-40~80°C (High temperature type available on request) |
| Supply Voltage |
DC24V |
| Output |
4-20mA |
| Interface Size |
Mounting thread - M59×2, Electrical interface - PG9 (Flange connection available on request) |
| Probe Material |
ABS, PE anti-corrosion, PTFE anti-corrosion |
| Instrument Information |
LCD display, built-in lightning protection device, IP65 waterproof rating |
| Application |
Liquid level of acid-alkali liquid storage tanks, water level of wells and pools, water level of lakes, rivers and reservoirs, etc. |
| Weight |
Approx. 1kg |
Features
- Non-contact: The probe does not direct contact with liquids eliminates corrosion, scaling, and blockage, ensuring low maintenance and long-term reliable operation.
- Intelligent Echo Analysis: Patented ultrasonic echo analysis technology enables stable and precise level measurement without manual calibration, even in complex environments.
- Built-in Temperature Compensation: Automatically corrects sound velocity errors caused by changes in ambient temperature, ensuring consistently reliable measurement results under varying temperature conditions.
- IP65 Sealed Monoblock Construction: Fully sealed design provides waterproof and dustproof protection, suitable for harsh industrial environments including humid, dusty, and outdoor conditions.
- High-Definition LCD Display: Features a high-brightness, high-resolution digital display for clear, intuitive data presentation. User-friendly operation with straightforward parameter configuration.
- Multi-Layer Protection: Incorporates a high-quality power module with integrated lightning protection and short-circuit safeguards, ensuring system safety and long-term stable operation.
Dimension

Installation

Applications
This ultrasonic level sensor is suitable for continuous liquid level monitoring in wastewater treatment systems, operating reliably in humid and corrosive environments. It is also widely used for water level monitoring in open water bodies such as rivers, lakes, and reservoirs, providing reliable data support for water resource management and flood control operations. For material level measurement in various storage tanks and containers, its non-contact design effectively prevents medium adhesion and corrosion issues, ensuring measurement stability and accuracy.

Tips: How to choose the right ultrasonic sensor for your project?
When choosing the right ultrasonic sensor for your project, it's important to evaluate the measurement range and accuracy required by your application first, ensuring the sensor can cover the maximum distance with sufficient precision. Next, consider the operating environment, including temperature, humidity, dust, and the presence of corrosive media, and select a non-contact, well-protected sensor with appropriate IP rating if conditions are harsh. Output signal compatibility and power supply requirements should match your control system to simplify integration. Installation factors like mounting type, connection method, and available space also play a key role in long-term reliability. In summary, the core principle in selecting an ultrasonic sensor is ensuring its specifications align precisely with your specific operating conditions.