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Nowadays, electric heating rods are still used in some hou
seholds, but they are prone to accidents if they are not pro
perly operated or left unattended.
This improved ele
ctric heating rod can solve some of the problems. It is desi
gned in the form of buoys. On the one hand, it can float in
the water to avoid overheating and fire. On the other hand,
it has a thermometer on its floating board, which can keep
abreast of the water temperature at any time.