Infrared Devices

Optris – Non-contact temperature measurement made in Germany

Optris has been developing and manufacturing innovative infrared measurement devices for non-contact temperature measurement, including handheld thermometers, stationary industrial IR thermometers, and infrared cameras for point and area measurement, for more than 15 years.

Comprehensive product portfolio comprises infrared measurement devices for different industrial applications as well as research & development. Along with our free thermal analysis software, our measurement devices enable constant monitoring and control of virtually every manufacturing process, and reductions in production costs through specific process optimisation.

Optris infrared cameras

Optris’ infrared cameras are fully radiometric stationary thermographic systems with an excellent price-performance ratio. The thermal imaging cameras are connected to a PC via USB and they are immediately ready to be used. Temperature data is displayed through the license-free analysis software optris PIX Connect.

The optris Compact and Precision Line

The Compact and the Precision Line offer thermal imagers for all applications.

Advantages of the PI Precision Line
  • Interchangeable lenses
  • Suited for fast processes (up to 1 kHz)
  • High thermal sensitivity (up to 40 mK NETD)
  • High optical resolution (up to 640 x 480 pixels)
  • Laser blocking filters
  • Temperature measuring ranges from -20 to 2000 °C
  • Different spectral ranges
    (500 nm / 1 μm / 7.9 μm / 7.5 – 13 μm)
  • Cooling accessories for harsh environments
    up to 315 °C ambient temperature
  • Shipped in rugged outdoor case with
    tripod and individual test report included
Advantages of the Xi Compact Line
  • Motor focus
  • Compact industrial imager for temperature
    measurements from -20 to 900 °C
  • Autonomous operation with automatic spot finder and direct analog output – ideal for OEM use (Xi 80)
  • Direct Ethernet and RS485 interface (Xi 80)
Automatic hot spot detection

Objects can be examinated thermally and hot or cold spots can be found automatically to reveal weak spots of the process.

Fast temperature measurements

With optris PI thermal imagers, temperature distributions on surfaces can be captured precisely within a millisecond intervall.

Extensive software with line scan mode

The accompanying software optris PIX Connect helps you with comprehensive temperature data analysis and documentation. Furthermore the software contains a line scan mode which is generally used for processes with moving objects under test.

Easy process Integration

Advanced interface concepts allow the integration within networks and automated systems:

  • USB cable extension up to 100 m over Ethernet or up to 10 km over fibre
  • Process interface (PIF) on the ir camera as analog input / output (0 – 10 V) and digital input (low- and high-Level)
  • Software interface via Dynamic-Link-Library (DLL) and ComPort

Pyrometer or IR camera? The Xi series is a fusion of a rugged, compact pyrometer and a modern IR camera. The spot finder IR camera has an optical resolution of 80 x 80 pixels and comes with an extensive ready-to-use package.

  • Small and robust camera with motorized focus
  • Distance/target size ratio 190:1
  • Independent function in spot finder automation

The spot finder IR camera has an optical resolution of 382 x 288 pixels and comes with an extensive ready-to-use package.

  • Motorized focus
  • Excellent distance/size ratio 390:1
  • Frame frequency: 80 Hz

Compact and fast thermal camera for various purposes and applications. Thermal video and imaging in real time. Temperature range options -20…900°C.

  • Temperature range:
    -20 . . 900°C
    (optional 1500°C)
  • Wave lenght:
    7.5 . . . 13 µm
  • Frequency:
    120 Hz
OPTRIS PI200 /  PI230

Very compact and fast thermal/video camera allows the combination and synchronous recording of real-time, thermographic videos and images. Temperature range options -20…100°C, 0…250°C or 150…900°C (T900).

  • Temperature range:
    -20 . . 900°C
    (optional 1500°C)
  • Wave lenght:
    7.5 . . . 13 µm
  • Frequency:
    128 Hz
OPTRIS PI400 / PI450

Compact and high-performance thermal camera for various purposes and applications. Optical resolution of 382 x 288 pixels provides real-time thermographic images in high speed. Temperature range -20… 900°C. Excellent resolution up to 40 mK.

  • Temperature range:
    -20. . . 900°C
    (optional 1500°C)
  • Wave lenght:
    7.5 . . . 13 µm
  • Frequency:
    80 Hz
  • Thermal sensitivity
    40 mK

Compact measuring VGA infrared camera. Thermal videos and images in real time with 640×480 pixel optical resolution. Temperature range -20…900°C.

  • Temperature frequency:
    -20 . . . 900°C
    (optional 1500°C)
  • Wave lenght:
    7.5 . . . 13 µm
  • Frequency:
    < 125 Hz

Short wavelength and ultra compact infrared camera for non-contact temperature measurements of metal surfaces. The short wavelength 0.85-1.1 μm makes possible to measure even a temperature of liquid steel.

  • Temperature range:
    450 . . . 1800°C
  • Wave lenght:
  • Resolution
    764 x 480 pixels
  • Frequency
    < 1kHz
  • Analogy output response time

Optris infrared thermometers & pyrometers

Optris infrared thermometers and pyrometers for spot measurements are particularly well suited for precise temperature monitoring of industrial manufacturing processes, research and development, and function checks of a diverse range of devices and systems.

Which infrared thermometer is right for me?

The easiest way of finding the right infrared thermometer for your application is using Pyrometer Selector, or during a commitment-free personal consultation with one of our application engineers.

If you still prefer to keep looking for the right pyrometer yourself, you should start by determining the properties of the object surface on which your measurements are to be performed. A particularly important parameter in this respect is emissivity ε.

How can I find the right optics for my infrared thermometer?

The use of the right optics is indispensable in order to achieve precise measurement results. It depends on the size of the object to be measured and the distance between the object and the pyrometer.

IR thermometers for non-metal surfaces: 8-14 µm

This wavelength corresponds to device type LT. Would you like to measure a non-metal surface such as a plastic surface? If so, these are your devices of choice.
Compact series: optris CS LT, optris CSmicro LT, optris CSmicro 2W LT, optris CX LT, optris CT LT, optris CTfast LT, optris CThot LT
High performance series: optris CSlaser LT, optris CTlaser LT

IR thermometers for metal: 0,5 – 2,3 µm

Pyrometers with this wavelength range are perfectly suited for measuring liquid and solid metal surfaces by simply selecting one of the following devices.
Compact series: optris CSmicro 3M, optris CSmicro 2W 2M, optris CT 1M / 2M, optris CT 3M
High performance series: optris CSlaser 2M, optris CTlaser 05M, optris CTlaser 1M / 2M, optris CTlaser 3M, optris CSvideo 2M, optris CTvideo 1M / 2M, optris CTvideo 3M, ratio pyrometer CTratio 1M

IR thermometers for glass surfaces: 5,0 µm

This wavelength corresponds to device type G5 and enables reliable temperature measurements on glass by selecting one of the following infrared thermometers.
Compact series: optris CT G5
High performance series: optris CSlaser G5 HF, optris CTlaser G5

IR thermometers for special applications: 2,3 – 7,9 µm

In addition to your usual measurement tasks, you may have to solve unusual measurement problems from time to time. For these situations, Optris offers the following pyrometers:

Pyrometers for Measuring Temperatures on Films

With a wavelength of 7.9 µm, these infrared thermometers of device type P7 are perfectly suited for measuring temperatures of very thin plastic materials such as PET, PU, PTFE, or PA.
Compact series: optris CT P7
High performance series: optris CTlaser P7

Pyrometers for measuring combustion gases

With a spectral range of 4.24 µm and 4.64 µm, respectively, infrared thermometers of device type F2 and F6 are ideally suited for measuring temperatures of CO2 and CO combustion gases.
High performance series: optris CTlaser F2, optris CTlaser F6

Pyrometer for measuring temperatures through flames

Workpieces inside furnaces are difficult to measure because the flames surrounding the workpiece distort the measurement results. An IR thermometer with a spectral range of 3.9 µm permitting easy and precise measurements through flames is the solution.
High performance series: optris CTlaser MT

Pyrometers for laser applications

Temperature measurements in laser applications require a stop filter against laser radiation in order to ensure precise measurement results.
High performance series: optris CT XL 3M.

Optris Compact series: Small and low-cost infrared thermometers

Are you looking for an extremely small sensing head which can easily be integrated into processes with limited available space? Or are you looking for low-cost yet reliable infrared thermometers which can be used in multiple infrared measuring locations? If so, the small and low-cost pyrometers from Compact Series are ideal for your needs!

Optris CS LT

Perfectly suited for temperature measurement in small and narrow environments. The robust measuring heads have been developed for use in temperature ranges from -40°C to 1,030°C (– 40°F to 1886 °F) and can be employed in ambient temperatures of up to 80°C (176 °F) without additional cooling.

-40…+1030 ºC

Spectral range 8…14 µm

Output mV.

Optris CSmicro 3M

Designed for special spectral range of 2.3 µm which makes it the ideal IR pyrometer for temperature measurement of metallic surfaces starting from 50°C and allows measurements through glass.

The small infrared measuring head is optimally suited for installation in limited spaces and subsequently makes possible an especially cost-efficient mechanical process integration.

50…350°C or 100…600°C.

Spectral range 2.3 μm.

Output mV.

Optris CT LT

The pyrometer optris CT LT is equipped with one of the world’s smallest infrared sensors with a high optic resolution of 22:1. Additionally, it offers a high variability due to selectable analog outputs as well as several digital interfaces in the electronics box.


Spectral range 8…14 µm

Output 0/4-20mA, 0-5 V, 0-10 V, thermocouple. Optional USB, RS232, RS485, CAN-Bus, Profibus DP, Ethernet.

Optris CT 1M / 2M

Due to their short measuring wavelength and the high temperature range of up to 2,200°C the pyrometers optris CT 1M and 2M are ideally suited for employment in high-temperature measurements of metals, metal oxides, and ceramics. The short measuring wavelength of the infrared pyrometers additionally decreases measuring errors during low or changing emission levels.

1M 485…2200°C / 2M 250…2200°C

Spectral range 1M 1.0 µm / 2M 1.6 µm

Output 0/4-20mA, 0-5 V, 0-10 V, Tc. Optiona USB, RS232, RS485, CAN-Bus, Profibus DP, Ethernet.

OPTris CT 3M

Due to its short measuring wavelength and a temperature range from 50°C on, the pyrometer optris CT 3M, is ideally suited for employment in low-temperature measurements of metals and composite materials. The quick response time of only 1 ms allows for a problem-free use of the metal thermometer in fast processes.


Output 0/4-20mA, 0-5 V, 0-10 V, Tc. Optional USB, RS232, RS485, CAN-Bus, Profibus DP, Ethernet.

2.3 µm

Optris CT G5

Compact IR sensor for glass in high temperatures. Sensor head ambient temperature max. 85°C without cooling.

100…1200°C or 250…1650°C

Output 0/4-20mA, 0-5 V, 0-10 V, thermocouples. Optional USB, RS232, RS485, CAN-Bus, Profibus DP, Ethernet.

5.0 µm


The pyrometer optris CSmicro 2M has been designed for a temperature range from 250°C to 1,600°C. Its special spectral range of 1.6 µm makes it the ideal IR pyrometer for temperature measurements of metals. Sensor head max. temperature 120ºC without cooling.

The small infrared measuring head is perfectly suited for installation in very limited spaces and allows for an especially cost-efficient mechanical process integration.

250…800°C or 385…1600ºC.

Spectral range 1,6 µm

Output 2 wire 4…20 mA

Optris High performance series: Highly accurate infrared thermometers with laser

If you have rather demanding requirements in your temperature measurement devices, or if you would simply like to determine the measuring spot more accurately by means of laser technology, then the infrared thermometers from High Performance Series are the right choice for you.

OPTRIS CSlaser lt

The infrared thermometer optris CSlaser LT consists of a robust stainless steel sensor with integrated electronics, enabling easy integration into your system.

Its innovative double laser sight allows for an exact marking of measurement spots even on smallest objects. A variety of optics enables adaptation for a broad range of different applications. Additionally, the IR thermometer offers a standardized two-wire interface for a reliable transfer of measurement data and easy integration into a Siemens SPS.


Spectral range 8…14 µm

Output 0/4-20mA, 0-5 V, 0-10 V, thermocouples. Optional USB, RS232, RS485, CAN-Bus, Profibus DP, Ethernet.

OPTris CTlaser LT

The infrared thermometer optris CTlaser LT allows for exact temperature measurement on smallest objects from 0,9 mm at a distance of 70 mm. The IR thermometer optris CTlaser LTF is due to its short configuration time of only 9 ms perfectly suited for surveillance of quick working processes.


Spectral range 8…14 µm

Output 0/4-20mA, 0-5 V, 0-10 V, thermocouples. Optional USB, RS232, RS485, CAN-Bus, Profibus DP, Ethernet.