Fluke IRR2-BT Solar Irradiance Meter Pro meter only little use

LH-129 LH-131 Infrared Light Irradiance Power Meter Tester Radiometer

Infrared Light Irradiance Power Meter Tester Radiometer LH-129 LH-131

Early Digital Radiometer Gamma Scientific DR2 Vintage Test Equipment

Gamma Scientific model DR-2000 Radiometer / Photometer - Clean

UV-150 UV Integrator Radiometer UV Energy Meter Tester UV250-410nm 0-5000mW/cm²

International Lights IL1350 RADIOMETER/ PHOTOMETER USED.