MobilTherm – 1c GSM Thermostat module
with auxiliay inputs and high current outputs
The MobilTherm-1c is a GSM thermostat and remote signaling module, designed for GSM
based remote control, remote signal and temperature regulation. It comes with an external digital
thermometer,2 inputs that can be activated by 8-30V dc voltage and 2 single circuit high current
relay outputs with NO and NC contactors. Output relay no. #1 is switched on/off via SMS messages
in bistable mode (changes only by another SMS), the second output can be configured via SMS for a
given time to be switched on, so that it will automatically switch off after the configured time
expires. A small digital thermometer that can be connected to the module and it works in the
temperature range of -50C and +50C. The module keeps the temperature within the previously set
limit in either heating or cooling mode according to the temperatures configured by the user. The
module will automatically send an SMS to the user’s configured phone numbers when the
temperature exceedsthe configured minimum or maximum threshold. The user is informed about the
temperature alert either via an SMS alert with user defined preset text or an automated call by the
module. Auxiliary relay no. #1 is off by its default state and it can be switched on and off with a
configuration command. Relay no. #2 is also off in its initial state, and can be switched on for a
previously configured, user defined time by an SMS command. When the configured time elapses,
the relay will automatically switch off to its normal state. The module can be configured to handle
maximum of 8 telephone numbers. It can be used as stand-alone units for heating and cooling
systems replacing mechanical thermostats for both industrial and domestic use, therefore it is suitable
for cooling storages, air-conditioned rooms, warehouses and temperature regulated agricultural or
livestock breeding rooms. The power supply voltage range of the module is 10-30V dc. It can be
configured with our free software (which can be downloaded from our website) via an USB port or
by the SMS messages sent to the module. The auxiliary inputs and outputs can be labeled by max.
16 characters. The controller SMS commands to control the relays can also be configured by the
user. The module has its own 4-character ID which prevents unauthorized person from disabling or
reconfiguring it. The module has internal timers, which can turn off the relay no. #2 after a previously
set time and after this interval expires, it resets to its original state.
1. How the interface works:
The MobilTherm-1c can regulate the desired unit according to the configured heating or
cooling mode independently from other units, keeping the temperature at the configured level in the
given range. It works with a stand-alone
SIM card, either pre-paid or subscription
type from any provider. All configured
parameters and the current state of all
inputs and outputs can be queried and
checked after connecting to a GSM
network. The device confirms every
command by sending back an acknowledge
SMS. Do not send new commands until
the acknowledge SMS has not been
received. All of the configurations,
including names of the inputs, state of the
output s and the configured values etc. are
retained in the unit after being switched off. When proper voltage is restored, the unit will continue
working according to the user configured values. The system frequently queries the GSM network,
therefore in the case of a network problem or weak network restart and log back to the network,
SeaSoft Ltd. www.seasoft.hu - www.mobil-control.eu T: (+36) 62 406405 M: (+36) 30 2557688 F: (+36) 62 405-969
