extras
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CT clamp
$49 includes GSTzappi & eddi come with one wired CT clamp as standard.
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eddi relay & sensor board
$129 includes GSTeddi has the option to install a relay & sensor board, allowing for different wiring configurations.
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hub
$175 includes GST -

Test box
$499 includes GSTThis EVSE test box can be used to test the zappi as well as other AC charge point/EVSE products. The box signals to the zappi that an EV is connected and charging (the mode is selected with the selector switch).