Mechanical gas meters are from the qualification professional manufacturers:
Main function:
1. Wireless and bidirectional communication function
2. Control function
3. Resistance to magnetism
4. Low voltage protection
Main parameter:
Gas meter accuracy as OIML R31
DC working voltage 3.6V (15.6AH one lithium)
Static work current I≤30uA
Max work current I≤120mA
Wireless communication frequency 433.916MHz
Occupy bandwidth frequency 100KH +-50KHz
Wireless communication power ≤10mW
Receiving sensition ≤-115dB
Wireless communication mode FSK
Working environment -20 ~50
Relative humidity 93%
Apply to LPG Natural gas and Town gas