Model No: YS-S Origin: Korea Product Description: Spec: D7.5cm*W9.5cm*H21.5cm. With Sensor. Key Lock. Spray interval setting:7.5,15or 30 minutes. Perates on 2 D Alkaline Batteries.(batteries not inclued) Ideal for washrooms, salons, hotels, restaurants, gymnasiums and anywhere need a fresh, clean and hygienic environment. Fitted refill of YS-S: Spray-A, Spray-B. Model No: YS-N Origin: Korea Product Description: Spec: D7.5cm*W9.5cm*H21.5cm. Without Sensor. Key Lock. Spray Interval Setting:7.5,15 or 30 minutes. Operates on 2 D Alkaline Batteries.(batteries not included) Ideal for washrooms, salons, hotels, restaurants, gymnasiums and anywhere need a fresh, clean and hygienic environment. Fitted refill of YS-N: Spray-A, Spray-B.