The explosion-proof certification mark (FM) of Motorola's explosion-proof walkie-talkie is attached to the bottom of the walkie-talkie, indicating that the explosion-proof walkie-talkie has passed the explosion-proof certification. Next to the explosion-proof mark will be marked the hazardous environment level that the walkie-talkie can use, the number of the explosion-proof walkie-talkie battery that must be used together, the user manual number and the applicable temperature code. As long as it is used strictly in accordance with the specified scope, it can be guaranteed. The explosion-proof mark must be affixed after inspection before the product is shipped from the Motorola factory. It is forbidden to "upgrade" the explosion-proof product in other locations and attach the explosion-proof mark.
Do not use walkie-talkies that have not been certified by explosion-proof inspection agencies in dangerous atmospheres, as they may cause explosion or fire. Even the products certified by the explosion-proof inspection agency, if they are physically damaged (for example, the casing is broken), they cannot be used in a dangerous atmosphere, otherwise they are prone to explosion or fire. Do not replace batteries and other accessories in hazardous environments. Contact sparks generated during disassembly and assembly can cause explosion or fire. Even products certified by an explosion-proof inspection agency, when used in a dangerous atmosphere, the accessory connector should not be exposed. When the accessory connector is not needed, it should be tightly shielded with a dust cover. Do not disassemble products certified by explosion-proof inspection agencies in any way. Modification of the intercom can change the original design structure of the intercom hardware. Only the original manufacturer of the product can make modifications in the production site certified by the explosion-proof inspection agency. Authorized modification will invalidate the explosion-proof certification of the product.