The Sirius Series (SS09, SI16, SI23) is a compact, short-wavelength pyrometer for ferrous and non-ferrous metals from 50°C to 2500°C. Its shorter wavelength operation reduces sensitivity to emissivity changes on un-oxidised metal surfaces, with laser sighting and a 5ms response.
The Sirius line of pyrometers was developed to meet the growing demand for small, compact and easy-to-install sensors with first-class optical and electronic characteristics, covering temperature ranges from 50°C to 2500°C. Sirius pyrometers provide digital/analogue outputs and operate at shorter wavelengths where the emissivity of un-oxidised metal surfaces is higher — making them an excellent choice for measurement of ferrous and non-ferrous metals above 50°C.
These pyrometers offer adjustable focus optics and are exceptionally robust, with no mechanical moving parts and the lens, detector and electronics contained in a stainless steel IP65 housing. By utilising digital signal processing, the Sirius line exceeds standard analogue pyrometers in precision and repeatability.
PSCwin software supports automatic or manual set-up of the pyrometer, and recording and saving of graphics or table files — useful for quality assurance purposes since parameter settings are recorded alongside the data.
Talk to the Techotrix team to find out which Sirius model is the right fit for your application.
| Overall Temperature Range | 50°C to 2500°C |
| SS09 | 550–2500°C, spectral response 0.7–1.1µm, min spot size 2mm |
| SI16 | 250–1800°C (multiple sub-ranges), spectral response 1.45–1.8µm |
| SI23 | Short wavelength 2–2.6µm, for induction heating & metal heat-treat |
| Response Time | 5ms, adjustable up to 10s |
| Sighting | Laser targeting, switchable via button/software/contact/digital command |
| Output | Isolated analogue, switchable 0 to 4-20mA |
| Digital Interface | RS232 or RS485 |
| Housing | Stainless steel, IP65, no moving parts |
| Software | PSCwin |
Choose the Sirius model that matches your temperature range and target material:
Accessories: Water-cooling jacket, air purge, scanning mirror, adjustable mounting bracket and swivel base mount.
Contact the Techotrix team to select the right Sirius model for your application.




