SignalFire - The SignalFire Remote Sensing System™ is a robust long-range wireless mesh network de-signed for remote monitoring and control via vendor neutral nodes. The system works with level, pressure, temperature and flow meters, as well as offering critical asset control of valves, pumps, fans, heaters and 
an array of other devices.  Battery powered sensor and radio – Class 1 Div 1 Intrinsically Safe.