Technology standard:
Working voltage:3V~12V
Working current: max≤40Ma(12v) min≤9Ma(3v)
The way of resonance : sound wave
The way of modulation:ASK/00K
Working frequency: 315MHz, 433MHz(optional),and other special frequency.
Frequency error:±75kHz(max)
Transmission power: 25mW(315MHz,12v/hour).