Dr.Meter Digital Illuminance/Gentle Meter LX1330B , Zero – 200,000 Lux Luxmeter

Gossen GO 4200 Mavo-Spot 2 USB 1-Diploma Spot Luminance Meter (Black)

Lightdow 12 x 12 Inch (30 x 30 cm) White Stability 18% Grey Reference Reflector Gray Card with Carry Bag [folded version]