ST-A1 Ultra-Slim Design – 9mm Thickness Unique Pattern Easy Battery Replacement We are online Now! How can we assist you? WhatsApp Call Now Home » Products » Transmitter » 1 button bell » ST-A1Related ProductMini MonitorSR-300FPagerSB-700Corridor LightSRL-300Light IndicatorSLL-400 Product Detail View PRODUCT SPECIFICATIONDescription Ultra-Slim Design – 9mm Thickness Unique Pattern Easy Battery ReplacementSpecificationNumber of buttons1Modulation Type/FrequencyFSK/447.8625MHzPower SupplyDC 3V/CR 2025 1EA(Coin Battery)AntennaPCB pattern antennaDimensionØ59 x H9mmWeight15gColorDark-blue, WhiteFeatures The most applicable call button in various fields Slim and attractive designBenefits Provide high quality service Increase customer satisfaction Reduce staff cost Improve work efficiency System Map Press the call bell when service is needed. The call bell number will be displayed on the receiver with a sound. The direct pager can receive call directly from the transmitters.