The Optris CTlaser fast LT series sets an industrial standard in non-contact temperature measurement with precision, speed, and a wide temperature range. Its two-piece design integrates an infrared sensor with a 50:1 optical resolution, ideal for monitoring fast-paced manufacturing processes. These pyrometers excel in fixed-installed or fixed-mounted applications, ensuring consistent and precise temperature measurements. With a temperature range from -50 °C to 975 °C, optimized for non-reflective surfaces, they adapt well to dynamic industrial environments. Offering rapid response times and different focal points for flexibility, they guarantee exceptional accuracy and repeatability in temperature measurements. The series’ double laser aiming marks enhance accuracy, facilitating precise alignment and minimizing deviations, particularly beneficial in industrial and research settings.
| DETECTOR | |
| Detector | Thermopile |
| Measurement Principle | Single Color |
| Spectral Range | 8 – 14 µm |
| Response Time / Exposure Time | 9 ms |
| Sampling Frequency | 110 Hz |
| Exchangable Sensing Head | No |
| OPTICAL & SIGHTING | |
| Distance to Spot ratio (D:S) | 50:1 |
| Spot size (SF optics) | 24 mm at 1200 mm |
| Other optics (CF/add. CF lens) |
CF1: 1.4 mm @ 70 mm CF2: 3 mm @ 20 mm CF3: 4 mm @ 200 mm CF4: 9 mm @ 450 mm |
| Laser Sighting | Double point laser with 635 nm at max 1mW |
| Focus | fixed |
| MEASUREMENT | |
| Object Measurement Range | -50 ... 975 °C |
| Accuracy | ±1 °C or ±1 % |
| Repeatability | ±0.5 °C or ±0.5 % |
| Thermal Sensitivity (NETD) | 100 mK |
| Emissivity /Transmissivity/ Reflectivity | 0.100 – 1.100 |
| INTERFACES & SIGNAL PROCESSING | |
| Interface | USB / RS232 / RS485 / Profibus / Ethernet / Relay |
| Direct output/input | 0-20 mA / 4-20 mA / 0-5 V / 0-10 V / t/c (K/J) |
| Capabilities | Average, Peak hold, Valley hold, Advanced peak hold, Triggered signal output |
| Compatible Software | Compact Connect, IRmobile |
| GENERAL | |
| Size (Sensing head) | Ø50 x 100 mm, M48x1.5 |
| Size (Electronics) | 122 mm x 70 mm x 27 mm |
| Housing Material | Stainless Steel |
| Weight | Sensing head: 600 g / Electronics: 420 g |
| Operating Temperature Range | Sensing head: -20 °C ... 85 °C / Electronics: -20 ... 85 °C |
| Protection Class | IP 65, NEMA 4 |
| Power Supply | 8 – 36 V DC / 5 V USB / max. 1.2 W |






Thermography software optris PIX Connect is included and license-free.All infrared cameras are delivered with the thermography software optris PIX Connect, developed specifically for the extensive documentation and analysis of thermal images. The Windows-based PIX Connect software enables users to tailor the infrared cameras to meet specific requirements. It analyses live and recorded temperature data and triggers alarm signals for process integration. The key to leveraging the Optris infrared camera is a correct configuration. This includes detailed device-specific configurations such as frame rate, measurement range adjustments, external communication settings, and USB/Ethernet configurations. Moreover, PIX Connect facilitates firmware updates and the download of configuration files over the Internet.
Optris offers several different SDKs for our Xi and PI thermal imaging cameras. Depending on the operating platform, the infrared camera, the coding language, and the hardware platform, different software interfaces can be utilized:
The Optris IRmobile allows users to set up and commission an Optris infrared pyrometer or infrared camera with an Android smartphone or tablet. This tool becomes handy for commissioning and aligning the infrared camera’s field of view or adjusting the configuration. The app analyzes the connected infrared camera‘s live infrared image stream with auto hot and cold spot detection. For pyrometers, a temperature-time diagram or the video signal is displayed. This app works on most Android devices running 5.0+ with a USB port supporting USB-OTG (On The Go).