166 db calibrated cheapie termlab for DMM's

[mr_malina 10+ year member]

How did you calculate how the mV correlates to the dB?

 

[lilmaniac2 5,000+ posts]

i will be doing testing using my cheap 20 dollar craftsman dmm as well as the 25 dollar radioshack one, i may even try and get one of the ones like harbour freight if the local pawn shop has any

 

[Jeremiah25 10+ year member]

How did you calculate how the mV correlates to the dB?

They provide a chart with the sensor that correlates them. Basically you read the mV's with your DMM and look up the SPL on the chart.

 

[mr_malina 10+ year member]

They provide a chart with the sensor that correlates them. Basically you read the mV's with your DMM and look up the SPL on the chart.

That makes sense.

 

[aaron7114 10+ year member]

They provide a chart with the sensor that correlates them. Basically you read the mV's with your DMM and look up the SPL on the chart.

Oh so the actual DB reading doesn't show up on the DMM? I thought it did. There is a guy at my local circuit city that has something like this that plugs into his DMM and the actual reading shows up on the DMM. There is no having to look at a chart.

 

[NhustlaR 10+ year member]

come get it, i might get one just to dick around with looks like it might be fun

 

[Jeremiah25 10+ year member]

That makes sense.

Yeah, it's pretty simple really. Takes a little longer than a TL where the score just pops up, but for $70 or less, that's to be expected.

I guess a person could set down with a TL and this meter and make their own chart, so it reads closer to the same as the TL. It would take forever to do, but it is doable. Just record the mV output from this meter and the TL score, and keep doing it until you've made yourself a chart that has pretty much every score you can possibly hit on it. Not for me, since I already have a TL and don't give a ****, but if someone was a real tight *** and was real bored and had a friend with a TL...........

 

[jblpower 10+ year member]

I just prchased one I hope it works out. I purchased the one that comes with the software so you don't have to use the volt meter. Just plug into your laptop or desktop. Of course you have to calibrate your soundcard with a volt meter once you load the software, but thats o.k I own a fluke true rms meter. I just thought you guys might want to know that the company does offer the sensor with a software package I bought mine for $216.70 with shipping to Hawaii. So the ease of use factor goes way up the program also comes with a rta that you don't have to buy seperate and it comes with an o-scope program to turn your sensor into an o-scope as well. I own a terrasonde meter that I purchased back in 2002 it was o.k it was about 3 db's less than the ac 180 only problem was that the terrasonde would fail i had to send it back to the factory 2 times already and this time the capsule for the mic is no good. so I said screw it and bought the makeitlouder.com one. Plus the **** terrasonde cost me $2000 and I was quoted $300 just to have the capsule in the mic head changed. To use the makeitlouder.com sensor with software you have to have a sound card in your cpu. It uses the input and output of your soundcard to interface with the software and the sensor. The company says it takes about a half an hour to get it all setup and once the soundcard is callibrated its all good. Hope this helps anyone thinking of purchasing it. Once I recieve it i'll let you all know I don't know anyone with a termlab, but my car posted a 155.3 with my current setup which is 2 15" storms in a ported box in the back of my civic hatch tuned at 30hz and 159.7 when I had my wall in there tuned to 50hz. Of course it was on an ac meter and not the termlab. I have the same box in there now that I had when I metered the 155.3 so once i setup the new meter thats on the way I can give you guys the numbers on the new meter. Aloha all, Don.

 

[casper97ta 10+ year member]

that sounds great Don. glad to see another from honolulu on here. let me know how it turns out i might just have to have you meter my setup for me it sounds like this meter isnt so bad after all.

 

[jblpower 10+ year member]

Hey there, Where are u in Honolulu? I live in Aiea. Maybe we can meet sometime. Call me @561-3176 Aloha, Don.

 

[Decipha 10+ year member]

r u a predator?

 

[jibberjive 10+ year member]

Hey I'm moving to Laie for 2 months! I leave next Sat. I may just have to hook up with you guys and check out this meter. BTW I just bought one as well, $53 shipped on ebay. I won't be able to play with it until I get back in a few months though. Is there a lot of car audio shops there and alot of interest in car audio?

What are some good beaches/breaks to surf? I know the north shore is killer in the winter, but how is it during May and June? You guys may have to help me find some of the good local surf spots

 

[jblpower 10+ year member]

Hey Jibb, during may and june its usually the south shores that have the waves. But the north shore has still been getting good surf 3-6 ft range. Theres going to be a bump in the suft next week according to the surf forecast. As for the car audio shops theres no shortage of them here and specialty tinting holds a sound off about every 3 to 4 months. As for decipha's comment no i am not a peredator it's called Aloha. Most of us here in the islands have it. Peace, Don.

 

[WulfComp 10+ year member]

didn't someone have one of these for sale? I didn't want to look through all the pages again. For those that have it, do you recommend it?

 

[snoopdan 5,000+ posts]

my god i cant believe this thread is still going, lol