TTartisan Light Meter with Two Dial Electronic Camera Light Meter Hot/Cold Shoe Fixing Camera Photometer Photography Set-top Light Meter, Adjust Shutter Speed, ISO (Black)

From the brand

TTArtisan Lenses

“TTArtisan / Mingjiang Optics” is divided into three series: Range-finder lenses, Mirrorless lenses and AF lenses.

100mm F2.8 Tilt-Shift Macro 2X

AF 27mm F2.8 Auto Focus Lens

50mm F1.4 Tilt Manual Lens

Compact and lightweight: The TTartisan meter is a small, lightweight accessory meter that weighs only 93g, it serves well for people who use older Leicas and similar rangefinder cameras.
Shoe-mount design: The meter conveniently slips into the camera’s shoe while readings are taken.
Two dials: one for ISO and aperture and another one for shutter speed allow settings to be made.
LED indicator: A series of LEDs illuminate to tell the user when the correct measurement has been achieved. (Battery is not included in the product)