PE-01 electronic seal is a fine replacement for traditional disposable seals equipped with a sealing cable. In standby mode, with the sealing cable loop locked, the output status is high and a green LED is on.
Shorting or cutting the sealing cable loop will trigger changing the output status to low and the LED will be turned off.
There is an option to have the seal with inverse binary output signal. It is compatible with GPS recorders (e.g. on vehicles).