KTT9 disaster area telephone portable communication telephone

The portable communication phone for coal mine rescue in disaster areas is suitable for use in mine tunnels, disaster areas, underground air defense facilities, underground shopping malls and warehouses, caves, tunnels, bordering mountainous areas, and regional places where electromagnetic waves cannot be transmitted.
Features of the disaster area telephone product: draw lessons from today's advanced wired telephone design, use digital integrated circuits, high sensitivity, energy saving, non-verbal manual alarm function, the instrument can be used in environments with methane and coal dust (cannot be used in environments with methane and coal dust) Explosive hazardous petroleum, chemical and other industrial sites), multi-station relay has continuous communication function (multi-station talking distance), the power communication box is made of silica gel and is integrally potted, and the headset is sealed and waterproofed. . This product can be used with a positive pressure (negative pressure) air oxygen respirator, and the call effect is clear and reliable. , can make continuous uninterrupted calls and make calls while putting out the line. Product composition:, communication cable (including winding reel), maximum communication cable length, power supply communication box (built-in hydrogen battery pack). , Advanced dedicated headsets (headset cable length). , connecting line. , special charger (). Technical parameters: Working temperature: ℃ + ℃ Distortion % Working frequency Alarm frequency + Intrinsic safety parameters: Working voltage: Working current: Open circuit voltage:, Short circuit current: Power supply Communication box: Voltage capacity: Life span: Rechargeable Continuous use time: ＞Hours
Contact: Liu Xia
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