I have 3 cellular alarm backup dialers fo sale. They all work, all come with batteries and internal antennas. They are as follows:
2 - Honeywell 7845CV2
1 - Telular TG-100 w/ battery and AC supply (in box w/ instructions)
Make offer for all 3
I also have a number of PIR detectors, RF and PIR, alar modules and accessories.