TK-LS External Mounted Level Switch

1. Product Overview 
The TK-LS external mounted level switch features a unique sensing element (probe) installed on the outer wall of the container. Compared to traditional level switches, its non-contact measurement method not only ensures high accuracy but also eliminates the need for drilling holes or hot work on the container wall, achieving true non-contact level measurement. It is primarily used for monitoring liquid levels in storage tanks, providing upper and lower limit alarms, or detecting the presence of media in pipelines (dry state protection). It is suitable for level process control in industries such as petroleum, chemical, power, and food.
2. Working Principle
The TK-LS external mounted level switch is developed and manufactured by Tuko Electronics. The probe is attached to the outer wall of the container, and its high-frequency pulse signals penetrate the container wall, propagating through both the wall and the medium. These signals are reflected back from the inner surface of the container. By detecting and calculating the characteristics of these reflections and the propagation within the container wall (comprehensive wave), it determines whether the liquid level has reached the measurement position. Utilizing Tuko Electronics' patented "ultrasonic frequency conversion" technology, it resolves the long-standing issues of signal instability and false alarms in traditional ultrasonic level switches, achieving a qualitative leap.
3. Product Features 
External installation: no drilling, no hot work, no damage to the tank; can be installed and maintained without stopping production.
Non-intrusive measurement: independent of medium pressure, specific gravity, and corrosiveness; wide applicability.
External measurement: no interference, pollution, or corrosion to the medium inside the tank or equipment.
Suitable for atmospheric or high-pressure tanks and equipment in petrochemical industries, food tanks with strict hygiene requirements, sanitary tanks, and highly corrosive tanks; an environmentally friendly instrument.
Equipped with various probes: can measure both normal-temperature and high-temperature tanks.
4. Performance Indicators

5. Installation Diagram