whats the best tds meter??

boxfishpooalot · 09/21/2007, 08:50 PM

I want a good one, whats the best? My old one sucks i need a new one.

AZDesertRat · 09/21/2007, 08:55 PM

HM Digital COM-100 .

boxfishpooalot · 09/21/2007, 08:58 PM

thanks, but its not on ebay

Im looking on ebay for somthin right now....

boxfishpooalot · 09/21/2007, 09:03 PM

Ok found it on ebay 92 bucks. Why is this so good? Accuracy is same as others only at +/- 2%. Waterproof.

are their cheaper ones like this?

AZDesertRat · 09/21/2007, 09:04 PM

There are usually some on there. If you want the best, read the tech sheets on it at www.tdsmeter.com . There is nothing else like it and it's well worth the $45 to $50 it costs and then some. No other meter can be calibrated in three modes for extreme low end accuracy. Why calibrate a TDS meter at 442 or 1000 TDS when you are measuring less than 1 TDS with DI water?

I just punched in com-100 on e-bay and it came back with 4 of them at auction. $49.95 with free shipping, thats about the going price.

boxfishpooalot · 09/21/2007, 09:06 PM

ok but this one is 92 bucks, is it the wrong one?

http://cgi.ebay.ca/HM-COM-100-WATERP...QQcmdZViewItem

PSam · 09/21/2007, 09:07 PM

$92 on ebay? ouch. Try the filter guys. I like the com100 as well. works right out of the box, calibrates with a button - no screwdriver, and is super easy to pop in your sample and have a reading in a few seconds.

AZDesertRat · 09/21/2007, 09:12 PM

I saw that one too but there were three others at $49.

boxfishpooalot · 10/04/2007, 03:30 AM

Ok I just recieved my HM Digital COM-100 . Nice little tool. My questions:

Tap water tds: 70ppm

Output water: 7ppm

Whats strange is when i drop in a heaping teaspoon of deionization resin, the tds climbs a little and does not drop at all? Thats in a cup of ro water. Does the resin effect the meter while in the cup? Is this brand new di resin working, or did i get scammed? I have the meter set on ppm and IIRC NaCl standard. Not sure wich its supposed to be on NaCl, or the other 2. LOL why does my RO unit suck really bad? What is that? 60% removal

Help guys.

boxfishpooalot · 10/04/2007, 03:12 PM

Anybody?

AZDesertRat where are you?

Im concered that my di resin is not working. Does the resin reduce tds instantly, or does it need to sit for an hour.

09/21/2007, 08:50 PM	#1
boxfishpooalot Registered Member Join Date: Mar 2005 Location: canada, Grande Praire, Ab Posts: 5,824	whats the best tds meter?? I want a good one, whats the best? My old one sucks i need a new one. __________________ Its a good idea to have a refrence sample for alk test kits. 1.1350 grams of baking soda in 1gallon of distilled water=10dkh. Check your alkalinity test kit! Algae is Mother Natures phosphate remover Current Tank Info: 220 galon mixed reef.

09/21/2007, 08:58 PM	#3
boxfishpooalot Registered Member Join Date: Mar 2005 Location: canada, Grande Praire, Ab Posts: 5,824	thanks, but its not on ebay Im looking on ebay for somthin right now.... __________________ Its a good idea to have a refrence sample for alk test kits. 1.1350 grams of baking soda in 1gallon of distilled water=10dkh. Check your alkalinity test kit! Algae is Mother Natures phosphate remover Current Tank Info: 220 galon mixed reef.

09/21/2007, 09:03 PM	#4
boxfishpooalot Registered Member Join Date: Mar 2005 Location: canada, Grande Praire, Ab Posts: 5,824	Ok found it on ebay 92 bucks. Why is this so good? Accuracy is same as others only at +/- 2%. Waterproof. are their cheaper ones like this? __________________ Its a good idea to have a refrence sample for alk test kits. 1.1350 grams of baking soda in 1gallon of distilled water=10dkh. Check your alkalinity test kit! Algae is Mother Natures phosphate remover Current Tank Info: 220 galon mixed reef.

09/21/2007, 09:06 PM	#6
boxfishpooalot Registered Member Join Date: Mar 2005 Location: canada, Grande Praire, Ab Posts: 5,824	ok but this one is 92 bucks, is it the wrong one? http://cgi.ebay.ca/HM-COM-100-WATERP...QQcmdZViewItem __________________ Its a good idea to have a refrence sample for alk test kits. 1.1350 grams of baking soda in 1gallon of distilled water=10dkh. Check your alkalinity test kit! Algae is Mother Natures phosphate remover Current Tank Info: 220 galon mixed reef.

09/21/2007, 09:07 PM	#7
PSam Registered Member Join Date: Feb 2006 Location: Chicago Posts: 3,036	$92 on ebay? ouch. Try the filter guys. I like the com100 as well. works right out of the box, calibrates with a button - no screwdriver, and is super easy to pop in your sample and have a reading in a few seconds. __________________ ..no vemos las cosas como son las vemos como somos nosotros...

09/21/2007, 08:55 PM	#2
AZDesertRat Moved On Join Date: Jan 2002 Location: NW Phoenix Posts: 16,621	HM Digital COM-100 .

09/21/2007, 09:04 PM	#5
AZDesertRat Moved On Join Date: Jan 2002 Location: NW Phoenix Posts: 16,621	There are usually some on there. If you want the best, read the tech sheets on it at www.tdsmeter.com . There is nothing else like it and it's well worth the $45 to $50 it costs and then some. No other meter can be calibrated in three modes for extreme low end accuracy. Why calibrate a TDS meter at 442 or 1000 TDS when you are measuring less than 1 TDS with DI water? I just punched in com-100 on e-bay and it came back with 4 of them at auction. $49.95 with free shipping, thats about the going price.

09/21/2007, 09:12 PM	#8
AZDesertRat Moved On Join Date: Jan 2002 Location: NW Phoenix Posts: 16,621	I saw that one too but there were three others at $49.

10/04/2007, 03:30 AM	#9
boxfishpooalot Registered Member Join Date: Mar 2005 Location: canada, Grande Praire, Ab Posts: 5,824	Ok I just recieved my HM Digital COM-100 . Nice little tool. My questions: Tap water tds: 70ppm Output water: 7ppm Whats strange is when i drop in a heaping teaspoon of deionization resin, the tds climbs a little and does not drop at all? Thats in a cup of ro water. Does the resin effect the meter while in the cup? Is this brand new di resin working, or did i get scammed? I have the meter set on ppm and IIRC NaCl standard. Not sure wich its supposed to be on NaCl, or the other 2. LOL why does my RO unit suck really bad? What is that? 60% removal Help guys. __________________ Its a good idea to have a refrence sample for alk test kits. 1.1350 grams of baking soda in 1gallon of distilled water=10dkh. Check your alkalinity test kit! Algae is Mother Natures phosphate remover Current Tank Info: 220 galon mixed reef.

10/04/2007, 03:12 PM	#10
boxfishpooalot Registered Member Join Date: Mar 2005 Location: canada, Grande Praire, Ab Posts: 5,824	Anybody? AZDesertRat where are you? Im concered that my di resin is not working. Does the resin reduce tds instantly, or does it need to sit for an hour. __________________ Its a good idea to have a refrence sample for alk test kits. 1.1350 grams of baking soda in 1gallon of distilled water=10dkh. Check your alkalinity test kit! Algae is Mother Natures phosphate remover Current Tank Info: 220 galon mixed reef.