My question is not directly related to sensors, its more about wireless communication. Im posting this question here, because you, guys, have seen a lot of instrumentation in your travels.
Im looking for a wireless remote measurement system that communicates at 433MHz or lower frequency. FCC compliance is not a problem, because it will be working for one month, and it will be shielded from the outside world by a chainlink fence.
The purpose of the system is to measure and transmit gas pressure few times a minute for a month. The range is 50 to 100 meters. 4 or 6 units per base station Of course, I can add my own pressure sensor to a system that has an A/D.
Im looking for something thats pretty small about the size of a 9V battery
I guess, I could put such system together myself, but Ive got a very short notice, and I will need to field this system very soon, thats why Im looking for OEM modules.
Could anyone recommend?
Thanks,
Nick
P.S. back to web search.
Im looking for a wireless remote measurement system that communicates at 433MHz or lower frequency. FCC compliance is not a problem, because it will be working for one month, and it will be shielded from the outside world by a chainlink fence.
The purpose of the system is to measure and transmit gas pressure few times a minute for a month. The range is 50 to 100 meters. 4 or 6 units per base station Of course, I can add my own pressure sensor to a system that has an A/D.
Im looking for something thats pretty small about the size of a 9V battery
I guess, I could put such system together myself, but Ive got a very short notice, and I will need to field this system very soon, thats why Im looking for OEM modules.
Could anyone recommend?
Thanks,
Nick
P.S. back to web search.