The (protection grade of the thermometer IP code) How much do you know?

Some of the buyer in the purchase timing, temperature will be careful to see us in the product description of bimetallic thermometer will write & other; Protection grade: IP55 & throughout; What do you mean, this is? This is the thermometer waterproof and dustproof performance of a simple scoring criteria. Above: electronic metal thermometer waterproof tests IP protection grade is composed of two Numbers and two letters, does not require the digital nature rules, by a letter & other; X” Instead of ( If the two letters are omitted by & other; XX” Said) 。 Supplementary and additional letter can be omitted, don't need to be replaced. The first number of said equipment dust capacity ( 0 - Six or seven level) And the second number represents the waterproof ability ( 0 - 8 or 9 level) 。 Here is the IP protection class of each dustproof, waterproof grade brief description: dust levels: 0 & ndash; — Unprotected 1 & ndash; — Can resist more than 50 mm solid 2 & ndash; — Can resist more than 12. 5 mm solid 3 & ndash; — Can resist more than 2. 5 mm solid 4 & ndash; — Can resist more than 1. 0 mm solid 5 & ndash; — To avoid harmful dust 6 & ndash; — All the dust waterproof level: 0 & ndash; — Not waterproof 1 & ndash; — Can resist vertical falling drops 2 & ndash; — Can resist a 15 degree Angle of falling water droplets within 3 & ndash; — Can resist water 4 within 60 degree Angle & ndash; — Can all-round protection against splashing water 5 & ndash; — Can give against low pressure flush 6 & ndash; — Can give to withstand high pressure water 7 & ndash; — Can resist 0. 15 - 1 meters water depth of short time immersion 8 & ndash; — Can resist the long time of soaking above: specific depth IP standard protection grade such explanation can let everybody know about the shell protection grade of the thermometer more?