Rated voltage：V   3.7
Rated capacity：Ah  2.6
Battery life：Loop about 1000 times
Charging time：h   ≤4 Approximately 18 (solar);
Dimensions：mm   φ149×271
Product weight (including battery)：g   500±5
Sensing distance：m   10
Cautionary color;：Red/blue
Method of installation：High pressure non-destructive installation/wall-mounted Low-altitude version/high-altitude version/snap-in type
Warning light distance：≥1000m
protection level：IP66
Sound level (5m)：80dB

In a wide range of scenarios requiring safety alerts, traditional warning methods often fail to meet the needs in terms of efficiency, accuracy, and convenience. The emergence of H4903 solar-powered smart voice alert system provides an ideal solution to these problems. With advanced technology integrated with practical functions, it ensures the safety of various places.

1. Intelligent Sensing, Precise Early Warning

Equipped with high-sensitivity microwave and infrared sensing systems, the HZ4903 can automatically and precisely moving objects. When someone or something enters the preset sensing range, the device responds instantly, triggering voice alerts and flashing lights immediately, effectively reminding relevant personnel to pay attention to dangers and avoid accidents. In the factory workshop, it can timely alert workers to stay away from dangerous areas; on the road construction section, it can inform vehicles and pedestrians of the ahead in advance, ensuring traffic safety.

 

2. Solar Power Supply, Environmental and Energy-saving

The device adopts a high-efficiency solar panel, which can efficiently convert energy into electricity and store it in the built-in high-performance lithium battery. As long as there is light, it can continue to power the device, not only getting rid the dependence on the traditional power grid, reducing the cost of wiring and electricity, but also in line with the concept of environmental protection, reducing carbon emissions. Whether in remote mountainous, field operation sites, or places with inconvenient power supply, it can work stably without being limited by power.

 

3. Multiple Alert Modes, Flexible Response

 Alert: Built-in a clear and loud high-decibel loudspeaker, it can play a variety of preset warning voices, such as "Danger ahead do not approach" and "Pay attention to safety, be careful in operation". At the same time, it supports voice customization to meet the personalized warning needs of different scenarios, that the warning information is accurately conveyed and enhancing people''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''s safety awareness.

Light Alert: Paired with high-brightness red and blue flashing warning lights, the lights strong penetration, which is clearly visible even in strong light or bad weather. Lights and voice start synchronously, attracting attention through visual and auditory dual stimulation, and strengthening the effect from all aspects.

 

4. Durable and Adaptable to a Wide Range of Conditions

High Protection Grade: The overall design adopts a sealed design, with a grade of IP65, which has excellent waterproof, dustproof, and corrosion-resistant performance. It can work normally in harsh environments such as heavy rain, sand and dust, temperature and humidity, and is not afraid of various complex weather and environmental tests.

Excellent Material: The case is made of high-strength, impact-resistant engineering plastic, is resistant to impact and wear, effectively protecting the internal electronic components and extending the service life of the device. Whether placed outdoors for a long time or frequently moved and used, it operate stably.

 

5. Convenient Installation, Easy Management

Easy Installation: The device is designed to be lightweight and flexible in installation methods. It can be quickly installed fixed through wall hanging, standing pole, etc., without complex tools and professional technicians, greatly saving installation time and labor costs.

Remote Control Operation: Equipped with an remote control, it can be operated remotely for the device, such as switching on/off, adjusting volume, switching alert modes, etc. It is convenient for managers to adjust the settings in time according to the actual situation, improving management efficiency.