THORLABS PM16-425 Compact USB Power Meters with Thermal Sensors (0.19-20 µm)

Detector Type: Thermal Surface Absorber (Thermopile)

Wavelength Range: 190 nm - 20 µm

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

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

Aperture Size: Ø25.4 mm (Ø1.00")

Resolution: 100 µW

Sensor Coating: High Power Broadband

Sensor Housing Dimensions: 50.8 mm x 50.8 mm x 35.0 mm (2.00" x 2.00" x 1.38")

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

30 mm Cage Mounting: Two 4-40 Tapped Holes & Two Ø6 mm Through Holes

Aperture Threads: Internal SM1

Removable Heat Sink: yes

Accessories: Externally SM1-Threaded Adapter

(a) For complete power meter specifications, see the manual.

(b) Under conditions of intermittent use, with maximum exposure time of 20 minutes for the PM16-401 and 2 minutes for the PM16-425. The PM16-405 saturates for optical input powers >5 W



  • Quality Engagement
  • Easy change and return
  • Delivery Avaliable
  • Favorable payment