[China Aluminum Network] The performance of aluminum alloy doors and windows is different depending on the scope of use, but usually consider the following aspects: Strength, which is mainly reflected in the choice of aluminum alloy doors and windows profile material, whether he can withstand high pressure; airtight, mainly reflected in the structure of doors and windows, doors and windows of the internal fan and frame structure is tight, aluminum alloy outdoor window is Close to the wind. Watertight, the main assessment of aluminum alloy doors and windows whether there is water, leakage phenomenon. Sound insulation, which mainly depends on the sound insulation effect of insulating glass and other special sound-proof airtight structure and the durability of other door and window accessories such as opening and closing force, heat insulation, durability of nylon guide wheel, and durability of opening and closing lock. Wireless pressure transmitter is high accuracy and low consumption wireless pressure measuring device. NB-lot LORA GPRS wireless spread spectrum communication technology is used for remote data transmission. It is simple to install, without onsite wiring,which save construction cost, especially suitable for not easy wiring and unable to power supply. Wireless Pressure Transmitter,Wireless Pressure Sensor,Wireless Pressure Transducer,Wireless Differential Pressure Transmitter Xi'an Gavin Electronic Technology Co., Ltd , https://www.cngamicos.com