Analog hydrometer showing different reading with digital type..


May 20, 2009
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#1
Hi bros,

Just want to seek advice frm bros here if anyone encounter such situation.

I bought a analog type dry cabinet from one of the bro here, then i went to buy another digital hydrometer and place side by side to the analog hydrometer, then i went to turn the knob.. on the digital its show 47%RH but on the analog it's show 57%.. it different by 10!!.. both about the same temperature.

so is this situation common? or is the dry cabinet spoilt?:dunno:
 

Xtol19

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Dec 13, 2008
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#2
So which one do you believe? Hint: accuracy doesn't depend on whether an instrument is digital or analog.
 

May 20, 2009
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#3
So which one do you believe? Hint: accuracy doesn't depend on whether an instrument is digital or analog.
well i would like to believe the analog type.. but considering the dry cabinet is abit old already thus make me think twice..

yes i agree tat accuracy doesn't depend much but it were abt 5% different i still find it acceptable.. but 10% different, it abit too much right?.. :think:
 

ziploc

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Jan 17, 2002
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#4
Hi Astroboy77,

You can either compare the digital hygrometer with your friend's or bring it back to the shop and compare with another one (preferrably different brand). Otherwise you can perform a salt test to check the accuracy of the digital hygrometer. Last time when I bought my 2 pieces of Akarui dry cabinets, the analog hygrometers in both cabinets were inaccurate and I needed to calibrate manually.
 

Barrios

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May 19, 2002
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#5
Do a 'salt test' to see which one is more accurate. Or you can get a Humidipak 75% RH test kit to test it out.

 

Barrios

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May 19, 2002
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#7
May I know where you bought this? Thks~
I bought it from Ebay for US$4.49 (excluding shipping) a pack. Basically, it comes with a sachet of chemical compound and a ziploc-styled nylon bag. No water is used. Once the kit is opened, it is accurate up to a period of 3 months.

DIY 'salt test' which uses salt and water may (don't flame me) damage the hygrometer especially when it is sealed in a bag/container with 'salty air' inside for 24-48 hrs.
 

Last edited:

ed9119

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Mar 11, 2002
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#8
i get these 68/70/72/75% RH humidity packs (Bovedas) at $2 or sometimes free from cigar forums ..............
 

Barrios

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May 19, 2002
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#9
i get these 68/70/72/75% RH humidity packs (Bovedas) at $2 or sometimes free from cigar forums ..............
Are you referring to the cigar humidity packs - pack used to regulate humidity - or the Boveda Humidipak Calibration Kit? They are 2 different things.
 

May 20, 2009
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#10
wow the humidipak kit look good... wondering any local shop or any bros here got ex-stock... easier for me to get it... kekeke
 

May 20, 2009
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#11
Hi Astroboy77,

You can either compare the digital hygrometer with your friend's or bring it back to the shop and compare with another one (preferrably different brand). Otherwise you can perform a salt test to check the accuracy of the digital hygrometer. Last time when I bought my 2 pieces of Akarui dry cabinets, the analog hygrometers in both cabinets were inaccurate and I needed to calibrate manually.
ok.. guess will find my fren to double check with his dry cabinet.. i hope the digital hygrometer is working fine .. as it cost me 35 buck!! .. didnt know it cost tat much to get one...
 

Dec 9, 2004
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Sembawang
#12
I bought it from Ebay for US$4.49 (excluding shipping) a pack. Basically, it comes with a sachet of chemical compound and a ziploc-styled nylon bag. No water is used. Once the kit is opened, it is accurate up to a period of 3 months.

DIY 'salt test' which uses salt and water may (don't flame me) damage the hygrometer especially when it is sealed in a bag/container with 'salty air' inside for 24-48 hrs.
Thks~..ohh...so not sold in Spore?...
 

May 20, 2009
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#15
Alright... after testing out in my fren digital dry cabinet... it confirm that the hygrometer is faulty!!!... dam .. wasted my money... any bro here got better recommendation to buy a goof and reliable one??
 

ziploc

New Member
Jan 17, 2002
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#16
Why not just bring it back to the shop to exchange for a good one?
 

May 20, 2009
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#17
Why not just bring it back to the shop to exchange for a good one?
i already lost the receipt!... and the best is i saw the same model at sim lim tower selling $15 buck cheaper.....
 

Feb 10, 2010
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#18
how much u paid in total now for the 2nd hand cabi and hygro?
 

simpson

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Jun 4, 2007
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#20
I have brought a digital hydrometer from ebay (see URL), it cost S$9.41 with free postage. I have two digi cabi, AD and HD, the HD is on analog metering, find it inaccurate, always at 50% even turned it to lowest. Therefore have purchased the digital meter from ebay. Tested the meter with AD model and found different about 3-5 percent. Now have installed (double side taped it). Hope the above help.

http://shop.ebay.com.sg/i.html?LH_A...eter&_sop=2&_trksid=p3286.c0.m14.l1513&_pgn=4
 

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