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Model No. | Port | Network | Simcard needed | MQTT | Remark |
CWT5010-2G | 4DI (digital input) 4DO (digital output) 1 RS232 | 2G(GSM) | √ | × | 4G include 3G and 2G , if 2G has been shut down in your area, please choose 4G; |
CWT5010-4G | 4G | √ | √ |

Port | Qty | Features |
DI (digital input) | 4 | ● Accept dry contact ●Can be configured as pulse counter input (counting frequency: 10Hz) |
DO (digital output) | 4 | ● Transistor output (drive voltage=power supply voltage, Drive current≤500mA ● Remote or local event activate DO on/off/pulse ● Remember status when power lost |
RS232 | 1 | ● Configuration port (baud rate: 1200~115200dps, default 9600,n,8,1) |
SMS Communication(only available for cellular version) | ● Preset 10 phone numbers (support distribute authority to receive sms) ● Sms alarm when any IO channel triggered or out of preset normal range ● Editable alarm and recover sms with time stamp ● Query any IO channel’s status or value via sms command ● Control output via sms command ● Sms report any IO channel’s status or value on schedule ● Remote setting via sms commands ● Can query SIM card balance, sms forward ● Support power lost sms alarm and recover sms(works with inside battery) |





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