H10721-210

The H10721-210 is a high-sensitivity photon counting head featuring:

  • Compact, integrated design (PMT + HV supply + cooler)
  • Thermoelectric cooling (-30°C below ambient)
  • Digital photon counting with USB interface
  • Designed for ultra-low-light applications requiring precise photon detection
Parameter Specification
Detector Type Bialkali PMT (Sb-K-Cs)
Spectral Range 300-650 nm
Peak Wavelength 420 nm
Photon Detection Efficiency 30% @ 400nm
Dark Count Rate <20 cps (cooled)
Max Count Rate 10 MHz
Timing Resolution 2 ns FWHM
Cooling Capacity ΔT = -30°C (max)
HV Adjustment 500-1000V (software)
Power Supply 12V DC, 2A max
Interface USB 2.0
Operating Temp. 0°C to +40°C
Dimensions φ60 × 65 mm
Weight 350 g