Optris CX hs LT High Sensitivity IR Sensor

CX LT sensing head


CX LT sensing head


CX LT with cable

Optris CX hs LT – Rugged Sensor with High Sensitivity

The CX hs LT sensor is ideal for applications which require a robust sensor that can take some abuse and also where it is necessary to monitor the smallest of temperature changes. The sensor is easy to use with a simple 2 wire, 4-20mA connection, and easily configurable using the optional USB interface and Compact Connect software.

Calibration as well as a full range of accessories are available for the Optris Compact infrared pyrometers.


New benchmark in low noise IR-thermometry
Suitable for relative measurement of smallest
temperature differences of 0.025°C
Complete solid state design without any moving
Wide power range: 5 – 30 V DC
A new class of ultra low noise
level IR thermometers
Simultaneous two wire output and digital
Alarm output (0 – 30 V / 500 mA)


Environmental rating: IP 65 (NEMA-4)
Ambient temperature: -20°C to 75°C
Storage temperature: -40°C to 85°C
Relative humidity: 10 – 95%, non condensing
Vibration: IEC 68-2-6: 3 G, 11-200 Hz,
any axis
Shock: IEC 68-2-27: 50 G, 11 ms,
any axis
Weight: 350 g


Temperature range: -20 – 150°C (scalable via software)
Spectral range: 8 – 14 μm
Optical resolution
(90 % energy):
CF-lens (optional): 0.8 mm @ 10 mm
System accuracy: ±1% or ±1 °C (1) (2)
Repeatability: ±0.3% or ±0.3°C (1) (2)
Temperature resolution: 0.025 K (for temperatures
> 20°C, AVG > 0,2 s)
Response time (90%): 150 ms (adjustable up to 999 s
via optional programming device)
0.100 – 1.100 (adjustable via 0-10 V DC
input or software)
0.100 – 1.100 (adjustable via software)
Signal processing: peak hold, valley hold, average;
extended hold function with
threshold and hysteresis
Software: optris Compact Connect

1) Whichever is greater
2) at ambient temperature 23 ±5°C and
object temperature > 20 °C

Output/analogue: 4 – 20 mA
Output/alarm: 0-30V/500mA (open collector)
Output/digital: USB (optional)
Loop impedance: max. 1000 1)
Cable length 8m
Power supply: 5-30 V DC

(1) Independent of supply voltage.


CX hc LT Optical Specifications


CX LT Dimensions


CX LT Accessories


Compact Connect Software