Q: Are the batteries included?
A: Yes, four batteries are included. (Two on the transmitter side / Two on the receiver side) An additional two batteries per side can be purchased to extend the battery life.
Q: How long will the batteries last?
A: Using two batteries (approx. 4yrs Transmitter & 5yrs Receiver) Using four batteries (approx. 8yrs Transmitter & 10yrs Receiver).
Q: How will I know that the batteries are low?
A: Both the receiver and transmitter is equipped with a low battery output.
Q: Does the SL-350QFR come with a built in transmitter?
A: No, only the iSeries SL-350QFR(i) has a built in Inovonics transmitter (EN-1941). The SL-350QFR is wireless ready and supports almost all wireless transmitters.