This is an additional tank level sensor compatible with Sensor Hubs, Sensor Nodes and LED the sight glass. By default, each of these devices already comes with a tank level sensor. This item can be used to upgrade to an alternative style or as an add-on if you originally purchased without the tank level sensor.
Measure: Tank Level (0-100%) Vacuum Level (0-29.9 inHg) Temperature (degrees F)
We generally recommend the submersible style level sensor in all scenarios. The only disadvantage to the submersible is it is one more think to wipe down/clean when you clean your sap tanks.
The submersible sensor cable length is 15' and includes an extra 15' extension: 30' total.
The ultrasonic sensor cable length is 15' total and by default does not include an extension.
The only scenario you'd want to use the ultrasonic sensor is for open top tanks using an electric releaser.