Spectro-UV DM-365XA UV Radiometer

Spectro-UV DM-365XA UV Radiometer

This is an economical device with an impressive specification. This is the perfect product for users wanting to measure the intensity of long wave UV-A [365nm].

Previously a Spectroline / Spectronics Product


The DM-365XA UV-A radiometer is the perfect pocket instrument to perform your daily black light lamp calibrations. Increased accuracy for more repeatable results means that true values can be obtained with just one reading without requiring a second reading to compensate for infrared sensitivity.

Compare to B&W LumaCheck



  • Measures UV-A light sources with overall accuracy of ± 5% per NIST standards
  • Auto-zeroing, excellent linearity and cosine response, solid-state design, compact, durable, simple operation, battery-level indicator
  • Sealed silicone photodiode protects against shock and humidity
  • Sensor housing is constructed with series of baffles and unique self-sealing mechanism to eliminate light leakage
  • Compact, lightweight and battery operated so measurements can be taken anywhere
  • Complies with ASTM specifications for MPI and FPI

Note: All meters are calibrated to NON-ISO 17025 calibration standards. ISO 17025 calibration is available upon request.

Technical Specifications

DM-365XA Specifications

Readout Unit
Resolution 10 μW/cm2
Screen 4½ digit, 7 segment, LED display, 0.5 in (1.3 cm) high
Overall Accuracy Better than + 5% with reference to NIST standards
Temperature Coefficient + 0.025%/°C (0 to 50°C)
Irradiance Range 0-19,900 μW/cm2
Spectral Range 320-400 nm
Power Requirements Two “AA” alkaline batteries (included)
Length 7¼ in (18.4 cm)
Width 3.5 in (8.9 cm)
Thickness 2 in (5.1 cm)
Weight 1 lb (0.45 kg)
Sensor Detector
Length 3 in (7.6 cm) 
Width 2 in (5.1 cm)
Thickness 0.70 in (1.8 cm)
Weight 1¼ lb (0.57 kg)
Cord Length 3 ft (91.4 cm)


  1. Standard Calibration Validity is 6 months. If 12 months validity is required, it must be specified on your purchase order.
  2. All meters are calibrated to NON-ISO 17025 calibration standards. ISO 17025 calibration is available upon request.
Description Part # Saved Price Select Option Add to
Spectro-UV DM-365XA UV Radiometer, Includes 4 Non-rechargeable 1.5 Volt Alkaline Batteries, Battery Level Indicator Light and Calibration Certificate. Measuring Range: 0-19,990 microwatts per cm2 UV-SP-DM365XA $839.00
Spectro-UV ISO:17025 Calibration certification for Specto-UV XRP-3000 with XDS-1000/XDS-1000A Dual UV-A/Visible Sensor. UV-SP-17025-CERT $300.00