Quadruple Electronics - Analogue telephone - KTH103 Ex - ABS - Explosion-proof telephone

This is a KTH103 Ex intrinsically safe push-button telephone, originally designed for use in underground mine environments where explosive gases exist. It is an industrial explosion-proof communication equipment. The entire machine casing is made of heavy dark blue engineering plastic, with a matte surface, sealed structure, and dustproof and impact-resistant industrial design features. The panel adopts high-contrast yellow round buttons, and the numeric keys and function keys are arranged in partitions for clear operation recognition; the three function keys of redial, hang up, and emergency call directly correspond to the actual use process of underground communication. There is a red indicator light on the lower right side of the fuselage, and two standard cable sealing joints are equipped on the bottom to facilitate on-site wiring installation. The earpiece is connected to the fuselage through a blue spiral curve, and the MA and ExibI explosion-proof logos are cast on the corresponding positions of the earpiece and the casing.