The infrared sensors have been designed for use in level monitoring applications for the control of oil for transcritical or subcritical application, or screw compressors and can be fitted directly to crankcase or to the separator (internal or external) of the compressor.
The switches have no moving parts, thus it is particularly suited for monitoring critical media where high reliability is needed.
These level switches use infrared technology for their operation.
The switch gives an alarm when low (or high) liquid level is detected.

operation mode: detect liquid presence with contact
body materials: Stainless Steel with Glass sensible dome

K11 Level Switch
K11 family of level switches is suitable for high pressure applications like pressurized vessels, HVAC and refrigeration, motors etc.
MAX. TEMPERATURE RANGE: from -40°C up to +125°C
STORAGE TEMPERATURE: from -40°C up to +125°C
MAX PRESSURE: up to 60 bar (burst 120 bar)
Click here to read the detailed K11 oil level switch technical sheet
K12 Level Switch
It combines the 90-230VAC Power Supply with the high temperature resistance (up to 125ºC) and a variety of possible threads.
Main features:

• lubricating oil reservoir level monitoring
• immediate sight glasses replacement
• critical fluid level detection on machine tools, chillers and any industrial OEM equipment
• monitoring refrigerant liquid level in both horizontal and vertical liquids receivers
• monitoring oil level in oil reservoirs
• P.O.E. Oil and Refrigerant Fluids compatibility

MAX. TEMPERATURE RANGE: from -40°C up to +125°C
STORAGE TEMPERATURE: from -40°C up to +125°C
MAX PRESSURE: up to 45 bar
Click here to read the detailed K12 oil level switch technical sheet
K25 Level Switch
The optical level switch has been designed for use in level monitoring applications for the control of oil or liquid CO2 for transcritical or subcritical application. The sensor provides two outputs: digital and analogical
MAX. TEMPERATURE RANGE: from -40°C up to +125°C
STORAGE TEMPERATURE: from -40°C up to +125°C
MAX PRESSURE: up to 150 bar
Click here to read the detailed K25 level switch technical sheet
LC XT Oil Level Switch for compressors
The LC XT series of optical level switches are specially designed for use in level monitoring for controlling the oil level of compressors or the level of refrigerant (or liquid) in the system
MAX. TEMPERATURE RANGE: from -40°C up to +125°C
STORAGE TEMPERATURE: from -40°C up to +125°C
MAX PRESSURE: up to 45 bar
Click here to read the detailed LC XT oil level switch technical sheet
LC XP Oil Level Switch for compressors
The LC XP series of optical level switches are specially designed for use in high pressure systems
MAX. TEMPERATURE RANGE: from -40°C up to +125°C
STORAGE TEMPERATURE: from -40°C up to +125°C
MAX PRESSURE: up to 120 bar
Click here to read the detailed LC XP oil level switch technical sheet
Multilevel Sensor
Teklab Multilevel sensor comprises up to 5 reading points and so an accurate measure of the liquid present within the glass reading dome can be retrieved
MAX. TEMPERATURE RANGE: from -20°C up to +85°C
STORAGE TEMPERATURE: from -20°C up to +60°C
MAX PRESSURE: up to 30 bar
Click here to read the detailed Multilevel liquid Sensor technical sheet
ROTALOCK Level Switch for HVAC systems
Rotalock optical level switch is specially designed for use in level monitoring for controlling the oil or refrigerant level in HVACS&R systems
MAX. TEMPERATURE RANGE: from -40°C up to +125°C
STORAGE TEMPERATURE: from -40°C up to +125°C
MAX PRESSURE: up to 45 bar
Click here to read the detailed ROTALOCK level switch technical sheet
STICK. Safe Tank level inside Indicator Control Kit
Teklab’s STICK (Safe Tank Indicator Control Kit) is suitable where visual indication and/or control of the level inside a tank/vessel is needed.
MEDIA TEMPERATURE RANGE: from -40°C up to +125°C
AMBIENT TEMPERATURE: from -40°C up to +125°C
MAX PRESSURE: up to 60 bar