Details
Engineered for applications that demand a durable metal housing and larger mounting threads for external installation
Built-in protection against reverse polarity, ESD, and voltage transients ensures reliable operation
Compatible with broad supply voltage ranges for flexible system integration
Available in both N and P-type output options, capable of sourcing or sinking up to 800mA—suitable for directly driving connected loads
Offered in both standard and extended temperature variants to suit diverse environments
Rugged stainless steel construction paired with a chemically resistant Polysulfone sensing tip
Multiple termination options available to match installation needs
SST’s LLHP series of liquid level switches are designed with larger mounting threads and rugged stainless steel housings, making them ideal for demanding or chemically aggressive environments. Each sensor is microcontroller-base
d and solid-state, using an infrared LED and phototransistor optically linked through the sensor tip when in air. When liquid covers the tip, the infrared light refracts out, causing the sensor output to change. The design is compatible with almost all liquid types—whether oil- or water-based—and is unaffected by ambient light, surface foam, or small air bubbles. The LLHP range supports both N and P-type output configurations. These can sink or source up to 100mA at 4.5 to 15.4 VDC, or up to 800mA at 10 to 45 VDC. Outputs are user-configurable to be active in either dry or wet states, providing flexible integration into a wide range of systems. Constructed with a robust stainless steel body and a chemically resistant Polysulfone or Trogamid sensing tip, the LLHP sensors are available with a variety of terminations. They are suitable for standard operating temperatures of -25 to +80°C or extended ranges from -40 to +125°C, making them a versatile choice for challenging applications.
Details
- Engineered for applications that demand a durable metal housing and larger mounting threads for external installation
- Built-in protection against reverse polarity, ESD, and voltage transients ensures reliable operation
- Compatible with broad supply voltage ranges for flexible system integration
- Available in both N and P-type output options, capable of sourcing or sinking up to 800mA—suitable for directly driving connected loads
- Offered in both standard and extended temperature variants to suit diverse environments
- Rugged stainless steel construction paired with a chemically resistant Polysulfone sensing tip
- Multiple termination options available to match installation needs
SST’s LLHP series of liquid level switches are designed with larger mounting threads and rugged stainless steel housings, making them ideal for demanding or chemically aggressive environments.
Each sensor is microcontroller-based and solid-state, using an infrared LED and phototransistor optically linked through the sensor tip when in air. When liquid covers the tip, the infrared light refracts out, causing the sensor output to change. The design is compatible with almost all liquid types—whether oil- or water-based—and is unaffected by ambient light, surface foam, or small air bubbles.
The LLHP range supports both N and P-type output configurations. These can sink or source up to 100mA at 4.5 to 15.4 VDC, or up to 800mA at 10 to 45 VDC. Outputs are user-configurable to be active in either dry or wet states, providing flexible integration into a wide range of systems.
Constructed with a robust stainless steel body and a chemically resistant Polysulfone or Trogamid sensing tip, the LLHP sensors are available with a variety of terminations. They are suitable for standard operating temperatures of -25 to +80°C or extended ranges from -40 to +125°C, making them a versatile choice for challenging applications.
