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Each UV wavelength range can be measured by simply replacing the receiver.

No Dip switch setting required for automatic receiver recognition
Full integration with USB 2.0 PC (includes Windows compatible software such as PC settings and data collection)
High-speed response, accurate measurement even during high-speed transfer
Assists accurate measurement by displaying errors such as over temperature, zero adjustment error, range over, etc.


25 heads (PD-254)36 heads (PD-365)40 heads (PD-405)
Judgment wavelength range230~280nm300~390nm350~490nm
Peak sensitivity wavelengthadout 255nmabout 350nmabout 410nm
display5-digit LCD
Light receiving elementSilicon photodiode
Receiving window dimensionsø5nmø3nm
Measurement rangeAutomatic (AUTO), manual 3-step switching
Display rangeIntegrated dose0.01~99999mJ/c㎡0.01~99999mJ/c㎡0.01~99999mJ/c㎡
Analog output(1mV irradiance)O.015~ 1.5Vmax0.03~3Vmax0.015~1.5Vmax
response speed(Zampling time)50Hz: 1O ms 60Hz:8.33ms (Switchable)
terms of usetemperature10~60℃(Continuous)
Humidity85% RH or less (no condensation)
Calibration accuracy±2%(For the value of the calibration standard calibrated by our calibration light source)
function・Gain correction
・Auto power off
・Battery level indicator
・Receiver type display
・Temperature display (receiver and display internal temperature)
・Engineering display
・Analog output
・USB output (can be set from PC)
Power supply3 AAA batteries (sold separately)
Sizeabout 201×75×thickness 15mm
weightabout 320g(Including the main body and the receiver, without a heat insulating cover)
accessoriesThermal barrier, analog output plug, CDROM, carrying case, inspection report, quick manual