Product Name: KX2030 Fire Alarm
Product Code: KX2030 Fire Alarm
Size: Approx. 120mm x 75mm x 55mm
Weight: About 47g
Material: Plastic
Color: Mixed
Is the device powered by batteries: Yes
Packing: 500pcs
Box Specification: 600*450*550mm

Preface:

In today's society, where children's education is increasingly valued, scientific enlightenment education has gradually become an important topic in the field of education, which is pursued and explored. More and more teachers and parents are beginning to pay attention to cultivating children's scientific literacy from an early age, so that children can develop good personalities and behavioral habits from the beginning. Parent-child interactive crafts can improve the quality of parent-child companionship, improve the relationship between parents and children, and we spend time with our children, without mobile phones, iPads, or televisions, only joy, interaction, and communication. It can cultivate the ability of children to solve problems by themselves. When children encounter problems, they should first see and experience the solution themselves, because parents and teachers solve problems in the process of doing crafts. It can develop children's imagination. In children's world, cars can fly in the sky, and the sun can be green. Playing with DIY crafts can cultivate children's practical ability by using different tools, which fully exercises children's little hands. Brushes, paints, scissors, hot-melt guns, glue"Children are brave to try any tools and to some extent, they are developing different skills. Improving children's self-confidence in the process of handcrafts, we try everything possible together, experience many failures, but we always succeed, which to some extent enhances their self-confidence. Cultivating children's concentration when children explore various tools and handcrafts, they are very focused, and if there is no external disturbance, they can continue to explore.

The purpose of the experiment: To enable children to learn more about scientific knowledge and their own ability to practice by means of game entertainment.

Principle Application: Fire alarms are one of the most important means to prevent fires, and they play a very important role in preventing fires and reducing fire losses. This product is made using a 40-degree constant-on temperature sensor as the main component. When the temperature sensor detects an external temperature higher than 40 degrees, the switch closes, allowing the circuit to conduct, causing the buzzer to emit an alarm, and simultaneously causing the LED to flash to indicate.

Experimental cognition: after the thermistor temperature control switch is heated, the circuit is conducted, and the buzzer makes sound, the light flashes to alert. After the danger is eliminated, the cooling circuit is disconnected, and the alarm is automatically removed.

Knowledge Expansion: A fire alarm is a type of alarm device that uses smoke sensors or temperature sensors in combination with microelectronic judgment circuits to drive alarm devices or electromagnet relays to achieve early warning or warning effects for fires.

Knowledge Extension: Material combustion can produce smoke, so it can also be used to make smoke detectors to remind people of the danger.

Safety Warning:

All the accessories in this product are specially designed for student experiments. Please use them under the supervision of teachers and parents to ensure safety! Do not consume any of the products! They are not suitable for children under three years of age. Do not approach fire sources. Before assembling any batteries, please check if the circuit is clear, all parts of the circuit are complete, and all contacts are good. The + on the battery is the positive pole, and - is the negative pole. Be careful during the assembly process, and if glue is used, do not get it in your eyes or on your skin.