SXL Liquid Level Control Set
SXL liquid level control set: a pair of SXL optical sensors for automatic high and low set point fill or drain control of tanks, with any 5-24 VDC relay or valve.
Fill or Drain Control Sensor Set
An automatic liquid level control set: a pair of SXL optical liquid level sensors for high and low set point control of reservoirs and tanks.
Wire the two sensors to any 5-24 VDC device up to 1 A, such as a relay or valve. No controller is required. The kit includes only the sensor set; you provide the valve or relay.
Fill Kit
The low-level sensor turns on the pump, valve or relay, which runs until the high-level sensor activates.
Drain Kit
The high-level sensor turns on the pump, valve or relay, which runs until the low-level sensor activates.
Simple Installation
Connect a DC power supply and the relay or valve as the wiring diagrams show. The sensors' intelligent functions include stable-state switching to detect splashing, a two-second output debounce and error indication.
How Optical Sensors Work
When the sensor tip is dry, infrared light from an emitter reflects inside the tip back to a receiver. When the tip is wet, most of the light escapes into the liquid and the reflection drops. A microcontroller drives the emitter, watches the receiver and switches the output according to the model.
LSM Mounting System
Mount level sensors on the end of any 1 in PVC pipe for top-down installation through the top of a tank: no holes in the tank side, adjustable depth, and easy removal for cleaning. The flange kit has all stainless steel hardware; wing nuts give quick access to the sensor and a set screw in the flange sets the depth.
View LSM mounting system ›See It Work:
How the SXL optical liquid sensor detects liquid at its tip.
Manuals and Data Sheets
Need Help Choosing Sensors?
Tell us about your tanks and the pump, valve or relay you use and we will recommend the right kit.
