产品介绍:
智能短信警报控制器
Support 900/1800/1900 MHz Tri-band frequency
Identify ASCII or Unicode SMS Automatically
Support max. 140 ASCII Characters
Support max. 70 Unicode Characters
Built-in ASCII Commands and SMS tunnel Communication Modes
Max. 10 Default Phone Numbers
Built-in Watch-dog Function
Industrial Design with Surge Protection
Support SMS setting and control
10 DI (6 Counter), 2 DO, 2 RS-232 port
Digital input support NC(normal close)/NO(normal open)/Counter modes
Send alarm SMS by DI trigger or exceed Counter preset limits
Support simple command to send SMS via RS232
Support DC +10 VDC ~ +30 VDC Power Input
Supports 3.7 V Li-ion Battery Backup
DIN Rail design
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