The single use temperature and humidity transmitter TT18 built-in temperature/humidity transmitter and GSM module, need to inset SIM card use. TT18 can wake up only when it is time to send data, or when the user operates it. Other than this, it is in sleep state. So it can be used for a longer time to bring you more convenience.
Temperature and humidity transmitter TT18 can collect high-precision temperature/humidity quickly, and then transmit it to the server software through GPRS. It is widely uesd in the cold chain logistics, medicine storage, refrigeratory and so on.
To set Selfsecurity you need to configure as follows. With the following commands through several text messages: In the example it is assumed that the device password is 000000 which is the initial data from the device and the APN are to APN_OPERATOR
- Set up our operator APN
- Define how often will transmit to our example 120 seconds
- Establish the server where we will connect
- Activate the GPRS mode