Fire warning system and NTC temperature sensor.Human Body Infrared Temperature Sensor

　　The automatic fire warning system is an automatic fire protection facility installed in buildings or other places for the purpose of early detection and notification of fires, and timely adoption of effective measures to control and extinguish them. It usually consists of fire detectors, regional alarm controllers, centralized alarm controllers, and linkage modules. The detector effectively detects fires, the controller processes fire information and alarm control, and the linkage module links the fire protection device. The display of temperature and smoke monitoring data can provide efficient warning reminders, which is important for temperature display in fire warning systems. Therefore, it is necessary to install NTC temperature sensors in the fire prediction system to monitor temperature.

　　The automatic fire warning system has a display screen in the middle of the front of the warning device, an NTC temperature sensor on the left side of the display screen, an MQ-2 smoke sensor on the right side of the display screen, a back panel on the back of the warning device, a connecting power cord in the middle of the back panel, and a cooling fan at both ends of the connecting power cord. The warning device has a microprocessor inside, which is electrically connected to a wireless network connection module, a power module, and a positioning module, The wireless network connection module is connected to the fire alarm control terminal and signal enhancement module.

　　Features:

　　1. Small size, light weight, sturdy structure, easy to automate installation (on printed circuit boards)

　　2. Due to the use of glass packaging, it can be used in high temperature and humidity environments

　　3. Fast thermal speed, good stability, and high reliability

　　Product characteristics:

　　1. Resistance: R200=0.55K Ω ± 5% B (100/200)=4300K Ω ± 3%

　　2. Thermal reaction time: ≤ 3 seconds in a water bath

　　3. Dissipation coefficient: about 0.9mW/℃ in static air

　　4. Rated power: ≤ 50mW

　　5. Working temperature range: -40-250 ℃

Read recommendations:

Gold chip NTC thermistor

The Role of NTC Thermistors in Electric Warming Hand Treasures.metal cap Photoresistor

PIR Lens 0515

PIR Lens 8005-1

Φ7mm size