pH pen - i just got mine today! - Page 4

02-03-2005, 02:00 AM

Quote:

Originally Posted by MPeX

Small pack i got it for $3, bigger bottle (about the size of a brylcream container) $5... from petmart.

Y618 sells it for $2, but no stock da...

ok. thanks bro. must recalibrate half yearly... hopefully no need to replace probe...

02-03-2005, 02:01 AM

Just a quick question how long can the calibration solution last?

02-03-2005, 02:02 AM

Quote:

Originally Posted by MPeX

I made that stupid mistake on day 1.. run the ENTIRE device under running tap water.

Heng i realized after a few seconds that the device isn't waterproof (juz suddenly hit me!), and quickly remove the battery compartment on top and use hairdryer blow it dry... *sweat*

i too late liao... LCD now completely damaged

02-03-2005, 02:04 AM

Quote:

Originally Posted by dOlBy

Just a quick question how long can the calibration solution last?

Ermmm depends on how much we want to pour out... to calibrate, the pen's tip must be totally submerged under the solution, so need quite a fair bit of it...

Storage a few drops will do. I finish 1 small pack in 2 days! $3 gone juz liddis...

02-03-2005, 02:42 AM

Quote:

Originally Posted by dOlBy

Just a quick question how long can the calibration solution last?

I can only use once per small bottle bro. The balance of the buffer is not enough to calibrate a 2nd time. Guess it's $7 each time we calibrate ba.

02-03-2005, 03:46 PM

Quote:

Originally Posted by MPeX

Bought mine from Y618 today, the brand is Hanna.. $36 only! Happy like bird...

Itz the most worthwhile investment for me this year... beats the "longterm CO2 indicator" i bought earlier. That lousy inverted plastic can-like thingy will leak the indicator chemical under water pressure and is not very accurate..

I got mine during lunch from C328 $38 also. Yayyyyy....

02-03-2005, 08:39 PM

Quote:

Originally Posted by dOlBy

I got mine during lunch from C328 $38 also. Yayyyyy....

Y618's price tag showed $38 too... but i teh the aunty for liscount, so she gimme $2 off the listed price... bwahahaha.

Can't believe i was almost going to buy a 2nd hand one in buy/sell section for $40... heng.

03-03-2005, 01:24 AM

Just a reminder for those using Hanna PH pen, never let it drop into water, the water will get into eletronics and cause it to malfunction.

You can the battery compactment up and let it air or use hair dryer, likely u can recover it.

heavenkid · 07-03-2005, 05:30 AM

just to share with bros here,actually the ph 7 solution can use those mineral water frm ntuc or wat.U look at the label carefully,some BRAND gt stated the water ph...Just gt those brand with ph 7..100% accurate..My company also do water testing..So to save cost on spending $$ on these so call XXX ph7 solution.

So far so gd!!! A bottle of mineral water also cost hw much??compared to those solution

07-03-2005, 09:02 AM

Where is this Y618 and petmart?

02-03-2005, 02:01 AM	#32
dOlBy Guest Posts: n/a	Just a quick question how long can the calibration solution last?

03-03-2005, 01:24 AM	#38
shanghai Guest Posts: n/a	Just a reminder for those using Hanna PH pen, never let it drop into water, the water will get into eletronics and cause it to malfunction. You can the battery compactment up and let it air or use hair dryer, likely u can recover it.

07-03-2005, 05:30 AM	#39
heavenkid Dragon Join Date: Apr 2003 Posts: 1,048	just to share with bros here,actually the ph 7 solution can use those mineral water frm ntuc or wat.U look at the label carefully,some BRAND gt stated the water ph...Just gt those brand with ph 7..100% accurate..My company also do water testing..So to save cost on spending $$ on these so call XXX ph7 solution. So far so gd!!! A bottle of mineral water also cost hw much??compared to those solution

07-03-2005, 09:02 AM	#40
Bandit Guest Posts: n/a	Where is this Y618 and petmart?

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