The invention relates to a signboard used for a fire hydrant. The signboard comprises a signboard main body and a serial number separate body, wherein an NFC intelligent
chip is embedded at the rear side of the signboard main body. For the signboard, the detachable hollow design is adopted, so that the clear and sharp display can be realized even after paint
coating, and meanwhile, a serial numbercan be conveniently replaced; a light-reflecting film has light-reflecting property, so that the recognition at night is facilitated; the signboard main body and the serial number separate body are made of
synthetic resin, and not
metal aluminum plates, so that the probability of stealing is reduced, and meanwhile, the signboard main body and the serial number separate body are high-temperature-resistant,
moisture-proof and solarization-resistant;
mobile phone scanning can be used, data is automatically read, and thus the efficiency is high; a patrolling person needs to carry out inspection familiarity on site, a
label is then effectively activated, and therefore, the authenticity of patrolling recording and data is guaranteed; due to the arrangement of stainless steel cable tie holes, the fixing is facilitated, then the operation of on-site
punching for fixing using an electric tool is not needed, and therefore, the work efficiency is improved; and
corrosion-resistant coatings are arranged in outer films, so that the signboard is durable under the long-term severe outdoor conditions including solarization,
acid rain and the like.