HS-SR Two-Color Series – Two-Color Ratio Pyrometer
HS / HSL Aiming infrared thermometers with visual and laser aiming, from 240 °C to 3000 °C, for metallurgy, kilns and heating furnaces.
HSL-SR coding SKUs combine through-lens viewing with laser aiming and high-temperature single/two-color measurement that resists smoke, dust, vapour and window attenuation. Related HS visual-aiming single-color models are available on request.
Reliable readings through smoke and steam
Through-lens visual aiming
HS models make it easy to sight the target through the lens.
Visual + laser (HSL-SR)
Combine through-lens viewing with a laser mark for faster setup.
Two-color measurement
HSL-SR high-temp SKUs use single/two-color modes that resist smoke, dust, vapour and window losses.
4–20 mA + RS485
Analog loop plus digital communications on coding SKUs.
Wide high-temperature coverage
From 240 °C on HS IN up to 3000 °C on HSL-SR.
Industrial cable length
5 m cable on standard coding SKUs.
Models and parameters
HSL-SR models from the current coding list; HS visual-aiming SKUs shown for reference.
| Family | HS IN | HS SI | HSL-SR |
|---|---|---|---|
| Aiming | Through-lens visual | Through-lens visual | Visual + laser |
| Wavelength / mode | 1.6 µm | 1 µm | Single/two-color (high temp.) |
| Temperature range (°C) | 240–1400 300–1800 | 600–2000 700–2600 | 600–1400 700–1800 1000–3000 |
| Output | 4–20 mA + RS485 | 4–20 mA + RS485 | 4–20 mA + RS485 |
| Cable | 5 m standard | 5 m standard | 5 m standard |
HS (visual aiming) and HSL-SR (visual + laser, single/two-color) models from the current coding list. Ask us if you need a specific optical ratio for your installation distance.
Measurement
| Measurement mode (HSL-SR) | High-temperature single/two-color selectable; high-temp two-color on the 1000–3000 °C SKU |
|---|---|
| Response time (typical) | < 20 ms class on two-color instruments |
| Ratio / emissivity settings | On-instrument settings (see manual for your SKU) |
Electrical
| Analog + digital | 4–20 mA + RS485 |
|---|---|
| Power supply (typical) | 24 VDC class |
Environment & mechanics
| Environmental rating | IP65 (NEMA-4) |
|---|---|
| Ambient operating temp. | 0–60 °C |
| Storage temperature | −20–80 °C |
| Relative humidity | 10–95%, non-condensing |
Dimension drawing
Where HS-SR thermometers are used
Metallurgy & furnaces
Metal processes and heating furnaces.
Kilns & refractories
Kilns and refractory materials.
Semiconductor & high-temp processes
High-temperature processes that benefit from visual aiming or two-color measurement.
Frequently asked questions
When should I choose two-color (HSL-SR)?
What is the difference between HS and HSL-SR?
Which outputs are available?
What is in the box
- Sensor
- Mounting hardware
- Cable (5 m on coding SKUs)
Optional accessories
- Mounting bracket
Need help choosing the right range or optics?
Tell us your application and we will reply within one business day. OEM and custom versions are available — see OEM & Custom.