Yokogawa Electric / YOKOGAWA Portable Luxmeter TYPE 3281 with Case This is an analog illuminance meter (lux meter). It can be used without batteries. 300/1000/3000lx 3-range switching ◆YOKOGAWA Yokogawa Electric ◆ TYPE3281 ◆ TYPE: 3281 Scale: 1000, 3000 Measurement Range: 300, 1000, 3000 ◆Product dimensions (main unit): Width approx. 105 mm, Height approx. 115 mm, Thickness 50 mm ◆Case dimensions: Width approx. 155 mm, Height approx. 160 mm, Thickness approx. 80 mm Operation has been confirmed by shining a light on it. I have confirmed that the readings are roughly the same as another illuminance meter I have, but I cannot guarantee the accuracy as I am not a professional. It will be cleaned before shipping, but as it is a used item, there may be scratches, and the storage box may have discoloration due to aging. Some come with an instruction manual, and some do not. I have multiple of the same item, so please contact me if you need 6 or more. Type: Lighting/Lighting Equipment