Liquid level detector

A liquid level detector comprising:

• a float;
• an arm attached to the float and configured to convert a linear motion of the float in an up-and-down direction to a rotary motion;
• a holder fixed to the arm;
• and
• a body rotatably supporting the holder,
• wherein the body comprises a plurality of rotation regulators including a first rotation regulator and a second rotation regulator, the first rotation regulator configured to regulate a rotation angle range of the arm to a first range and the second rotation regulator configured to regulate the rotation angle range of the arm to a second range,
• the holder is supported by the body in a state where the rotation angle range of the arm is to be regulated by the one of the plurality of rotation regulators,
• the rotation angle range of the first range is different from the rotation angle range of the second range,
• the first range and the second range do not overlap each other in a rotation direction of the arm,
• each of the plurality of rotation regulators comprises a pair of stoppers disposed separately from each other in the rotation direction of the arm, and
• at least a part of area between the pair of stoppers of the each of the plurality of rotation regulators is open to outside of the body.