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GGnoRE · 05-03-2012, 08:25 AM

I think it is worthwhile arguing for the sake of $138.

But, there are few things different with this speed gun that are worth noting. First, there is NO calibration, only a passive "Confidence Check". If you ask why was there no calibration? The cop is right in saying that there is no calibration function with this speedgun. A lot of measurement devices such as a thermometer, scale etc, require an active calibration at a known setpoint, but this device differs. However, I guess you could argue whether or not he performed a confidence check. In the manual it says, "The scope may become misaligned by a heavy blow to the instrument" (Pg. 28). Misalignment to a laser gun means its not reliable, so you could ask the cop, how do you know the officer before you didn't drop it or damage it (which could have dealt a heavy blow) if you don't do a confidence check before you use the gun? Maybe you have better ideas...

Also, the manual "recommends" that the user checks daily, but it doesn't say it "must" be checked daily. It reads "Tele-Traffic recommends that this test be performed at regular intervals (daily)." If the cop says it is checked monthly, or bi-weekly, or weekly? the judge might say, that is good enough. The spec on this device says error values are within +/- 1 mile/hr by the way.

Good luck and let us know how it turns out. I am curious to know.

05-03-2012, 08:25 AM	#18
GGnoRE RS controls my life! Join Date: Mar 2012 Posts: 768 Thanked 562 Times in 245 Posts Failed 62 Times in 18 Posts	I think it is worthwhile arguing for the sake of $138. But, there are few things different with this speed gun that are worth noting. First, there is NO calibration, only a passive "Confidence Check". If you ask why was there no calibration? The cop is right in saying that there is no calibration function with this speedgun. A lot of measurement devices such as a thermometer, scale etc, require an active calibration at a known setpoint, but this device differs. However, I guess you could argue whether or not he performed a confidence check. In the manual it says, "The scope may become misaligned by a heavy blow to the instrument" (Pg. 28). Misalignment to a laser gun means its not reliable, so you could ask the cop, how do you know the officer before you didn't drop it or damage it (which could have dealt a heavy blow) if you don't do a confidence check before you use the gun? Maybe you have better ideas... Also, the manual "recommends" that the user checks daily, but it doesn't say it "must" be checked daily. It reads "Tele-Traffic recommends that this test be performed at regular intervals (daily)." If the cop says it is checked monthly, or bi-weekly, or weekly? the judge might say, that is good enough. The spec on this device says error values are within +/- 1 mile/hr by the way. Good luck and let us know how it turns out. I am curious to know. Last edited by GGnoRE; 05-03-2012 at 08:35 AM.