THORLABS S425C Thermal Power Sensor Head (0.19 - 20 µm, 2 mW - 10 W, Ø25.4 mm)

Wavelength Range: 190 nm - 20 µm

Optical Power Range: 2 mW - 10 W (20 Wb)

Input Aperture Size: Ø25.4 mm

Active Detector Area: Ø27 mm

Max Optical Power Density: 1.5 kW/cm² (Avg.)

Detector Type: Thermal Surface Absorber (Thermopile)

Linearity: ±0.5%

Resolutionc: 100 µW

Measurement Uncertaintyd: ±3% @ 1064 nm, ±5% @ 250 nm - 17 µm

Response Timee: 0.6 s

Cooling: Convection (Passive)

Housing Dimensions (Without Adapter): 50.8 mm x 50.8 mm x 35.0 mm(2.00" x 2.00" x 1.38")

Temperature Sensor (In Sensor Head): NTC Thermistor

Cable Length: 1.5 m

Post Mounting: Universal 8-32 / M4 Taps (Post Not Included)

30 mm Cage Mounting: -

Aperture Threads: Internal SM1

Removable Heatsink: Yes

Accessories: Externally SM1-Threaded Adapter

Datasheet