The advantages of the Jigsaw upgrade will depend on the original system, but chief amongst them are:
The TankGuard can be configured to communicate with most of the current range of electronic tank gauges, including Gilbarco Veeder Root (GVR), OPW, Franklin, OLE, etc. Many other gauges can be configured to emulate one of the more common gauges, so it would be unusual to find one it won’t link to. Gauge types may be mixed on a site by using multiple tank guards. One tank guard can manage up to 24 tanks (depending on the gauge type)
All Electronic Gauges have a display showing the current tank stock locally; the TankGuard doesn’t interfere with this.
The Tankguards use the GSM Data Network to communicate with the Web Service so it can operate worldwide. Other than a periodic status update, levels are only updated when a change in the level is detected, minimising SIM data costs.