| | Infrared beam type or red beam type of thru-beam type photoelectric sensor | 9 V [006P dry cell] Note : Since the 9 V dry cell and earphones are not supplied as accessory, please arrange them separately. | Red LED (lights up when the power is ON) | Red LED x 5(light up, successively, according to the incident light intensity) Audio confirmation with an earphone(frequency increases with light intensity) Note : Since the 9 V dry cell and earphones are not supplied as accessory, please arrange them separately. | Continuously variable adjuster | 0 to +40 ℃ +32 to +104 ℉, Storage: 0 to +40 ℃ +32 to +104 ℉ | 35 to 85 % RH, Storage: 35 to 85 % RH | Enclosure base: ABS, Top cover: ABS | Net weight: 95 g approx. |