产品介绍：
Industrial design, making it a reliable cellular solution for data collection and transmission
Reliable GSM/GPRS/EDGE/WCDMA/HSPA network connectivity, providing fast and cost-effective long-range wireless applications
Supply Voltage: +10 VDC ~ +30 VDC
4 KV ESD Protection
Support in 2G and 3G
Tri-band WCDMA 850/1900/2100 MHz
Quad-band GSM/GPRS/EDGE 850/900/1800/1900 MHz
Designed for Data, SMS and Voice Applications
Support TCP Server, TCP Client, UDP Client Connection stack
Support Standard AT Commands
A Digital Input Channel for Resetting the System
Provide the MIC Input and Speaker (32 Ω) Output Interface
LED Indicators for 2G/3G and Power Indication
High Reliability in Harsh Environment
RS-232 Port Supports 9600 bps to 115200 bps
USB2.0 high speed
USB Driver for Windows, LinPAC (Linux 2.6)
Mount Easily on DIN-Rail
Model 264 传感器在全球的安装数量已高达上百万只，是HVAC 楼宇自动化、高精度医药和卫生保健设施中低压差测量应用的“标准”产品。Model 264 型超低差压传感器使用闭端不锈钢焊接电容感应元件，仅要求极小的放大倍率，可为各类关键安装应用提供出色的精度和长期可靠性。Model 264 采用稳固设计，使用黄铜倒钩接头、卡轨安装架、以及可选的导管盖，可实现简单、稳定的安装。特性·**支持10 PSI 超压·安装方便·0~5VDC 或4~20mA 模拟输出·误接线全保护·使用非调整直流电源供电·满足CE 标准应用·暖通空调（HVAC）·能源管理系统·VAV 及风扇控制·洁净工程·OEM·实验室及通风橱控制·烘箱增压及炉通风控制·医疗仪器及设备