Review on Wireless Restaurant Caregiver Hospital Waterproof Office Electronics by Vettee Welch

I was initially hesitant to try them in a production/warehouse environment but they work very well. Ordered several times to expand. The batteries in each device last a long time and do not need to be replaced. The clock is durable and is used daily in multiple shifts in a production environment. Has a large assortment in our warehouse. You must read the instructions to learn how to program and name each sensor as it is not easy at first but once you learn and get it right it will be easy.