Device for indicating status of a container and related methods

A status-indicating device (10) for indicating a status of a container comprising:

• a support panel (100) having a forward-facing side (110) and an opposing back-facing side (120);
• a flap (200) attached by a hinge in relation the forward-facing side (110) of the support panel (100) manually actuateable between a first (210) and second (220) position,
• a permanent magnet (130) disposed in relation to the support panel (100) wherein the flap (200) is configured to engage the permanent magnet (130) in the second position (220),
• a slidable member (300) slidably attached to the flap (200), manually slidable between a retracted (316) and an deployed (318) position,
• wherein:
• the flap (200) is configured such that an exposed portion (312) of the slidable member (300) is unmasked in the deployed (318) position;
• and
• the flap (200) comprises a magnetically-regulated linear ratchet mechanism (250) activated in the flap (200) first (210) position and deactivated in the flap (200) second (220), configured when activated to restrict movement of the slidable member (300) towards the retracted position (316).