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On this joyous Christmas season, all employees of Anhui Hengtai Electric Co., Ltd. extend our sincerest holiday greetings and best wishes to you and your family. Thank you for your continued suppor...

1. Composite cable explosion-proof camera [usually a coaxial video cable+power cable composite, zoom explosion-proof camera is a coaxial video cable+power+control cable composite], generally referr...

1. Explosion proof fixed camera This type of camera consists of an imaging unit, a power supply unit, and a communication unit, and is fixed and turned by a simple external mechanical structure. It...

1. Identity: Whether the submitted product is consistent with the factory produced product; 2. Traceability: the rationality, legality, and effective tracking and filing of product design, producti...

1. The "Explosion proof Certificate" is issued by the Explosion proof Testing Center under the National Electrotechnical Commission. The certification represents that the product model ha...

National standards GB 3836.1-2010, GB 3836.2-2010, GB 12476.1-2000, GB 12476.2-2010 Electrical Equipment for Explosive Gas Environments. The development of this standard to a certain extent refers ...

The working principle of explosion-proof cameras is to suppress the generation and occurrence of the four elements of explosion, so that electrical products can still work normally in high-risk env...

Explosion proof cameras belong to the category of explosion-proof monitoring products and are a cross product of the explosion-proof industry and the monitoring industry. Because conventional camer...

In order to reduce the power consumption of the entire system, a Class D power amplifier is selected for this system. D-class power amplifiers, also known as switching power amplifiers, have high e...

The system consists of C8051F310 processor module, speech compression modulator module, A/IUD/A conversion module, microphone and amplification circuit module, power module, rechargeable battery mo...

The public address telephone system is an important component of the underground safety system in coal mines [1]. It is generally packaged together with the locking and marking system and used for ...

Loudspeaker telephone is a telephone that combines telephone and broadcasting functions to achieve remote scheduling and broadcasting. Due to the extremely harsh and noisy working environments in o...