Sen saphone WSG-30 Wireless Gateway Sensor System Monitor, Stand Alone or with Industrial Automation System S ensaphone WSG30 sen ds e mail notifications, tex t messages or communicates directly with existing HMI Human Machine Interface software using the Modbus protocol. Monitors up to 30 sensors In stand alone system use Monitors conditions from wireless sensors the WSG30 directly notifi es appropriate personnel by sending e-mails and text messages. For example, w ireless se nsors monitoring of heat problems within a data cent er, monitoring refrigerator and freezer temperatures and use medi cal appli cations where running wire would be in convenient or costly. W ithin an existing indu strial automation system The WSG30 can communicate directly with existing HMI software using the Modbus protocol. Sensor and transducer values can be sent wirelessly to the WSG30 main unit and then directly into your automation software. Beside supplying live wireless sensor information to your existing automation software, the WSG30 can also independently send e-mail and text message alarm notifications at the same time. The Sensaphone WSG30 can monitor u p to 30 wireless sensors i n addition to the automatic power failure alarm detection and diagnostic alarms. All sensors are supervised with their battery level reported and monitored. Monitors up to 30 sensors as far away as 300 feet plus automatic power failure alarm detection and diagnostic alarms. If any sensor has a low battery or drops offline, a diagnostic alarm is generated and users are contacted. A rechargeable battery backup is also built in. Up to 30 wireless sensors can be monitored by the WSG-30 in addition to automatic power failure alarm detection and diagnostic alarms. Sensors can be up to 300 feet away. Creates its own Mesh Network so that sensors can be used as repeaters and routers. The Wireless sensors can operate on standard AA batteries for up to 3 years. If any sensor has a low battery or drops offline This item ships from a separate warehouse and may require extra time for delivery.