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Not enough space for a 240V breaker

Although the Sense monitor only draws 4W, it must be installed on a 240V breaker for device detection purposes. Sense needs to monitor both phases of your electrical system and can only do so via a 240V breaker.

If there is not enough space in your electrical panel for a new 240V breaker, there are several possible approaches depending on your setup. Please consult a local electrician for guidance, as local electrical codes may disallow certain solutions, such as piggybacking on an existing 240V breaker.