Usage Tips:About this time management timer Designed to meet the demanding needs of commercial restaurant kitchens, this time management timer is simple to use and features multiple independent channels to help you track multiple cooking events simultaneously, making your cooking more practical and precise. This timer is perfect for home kitchens/snack bars/restaurants/bakeries and other cooking places. Easy to use The timer can be upright or hanging, and plugs into a 220-volt outlet without the use of batteries. The clear LED display makes it easy for people to check the time remotely. Waterproof button control panel makes the timer waterproof and easy to clean. Fully functional timer available in two modes - (hours:minutes) mode and (minutes:seconds) mode. The range is 00:00-99h:59m or 00:00-99m:59s. The timer has the function of retaining data. Even if the timer is turned off, the previous time setting will be retained. The timer has a reminder function, and one reminder can be set for each channel. Total duration includes recall time. The total duration and reminder duration do not interfere with each other. Loud alarm sound, high-decibel buzzer, adjustable volume (three levels), or mute. This timer is designed for busy and noisy restaurant/home kitchens so you never miss a cooking time. The high-quality timer is made of stainless steel, which is durable and not easy to rust. It is very suitable for high-temperature and humid working environments with a lot of oil smoke.