We have put in 3 common versions of gas meters. How to switch them on, test different gas readings to know if its safe or not safe.
There is a trainer mode where 1 trainer can control up to 8 other student devices.
We have put in 3 common versions of gas meters. How to switch them on, test different gas readings to know if its safe or not safe.
There is a trainer mode where 1 trainer can control up to 8 other student devices.