Anyone thermometers that last more than a month?

[Jake029]

I've run through several thermometers. Most seem to be accurate at first and then they all get inaccurate. Looking at the now, all 5 I have give 5 different temperatures lol.

I'm just about done with LED ones. Has anyone used the traditional thermometer like https://www.liveaquaria.com/product/5996/hagen-thermometers?pcatid=5996&c=3753+3993+3996+5996? Are they accurate and is there a cause for concern about it breaking in the tank and poisoning the water with mercury?

Or should I give an LED thermometer one last shot with a company like Hanna (they have 2 kinds)?

 

[yepreef]

u dont have temp probe?

 

[HB AL]

A small glass thermometer in the tank will always be accurate and you would have to hit it with a rock to break it. I use the cheap 5$ digital ones since I can see the temp from a distance and don’t need to pull it out to clean the coralline off it. Although they only seem to last a couple years and are always off Individually by the same amount consistently, my current one is always off by .7 degrees, that I verify with a calibrated thermometer I can dip in the water like one you would use for taking the internal temp of food your cooking.

 

[Jake029]

u dont have temp probe?

You mean like an apex probe? If so, i do not.

 

[grassy_noel]

I have an Apex probe and the Hanna digital thermometer (the one with the wire between the probe and the display unit). I calibrated the Apex to the thermometer about 3 months ago and as of this morning they were identical to a tenth of a degree F. Only thing is that the Hanna thermometer is not for constant reading. It's meant to be used for a period and then turned off. I think it even turns off automatically after a few minutes. If that works for you, I couldn't recommend it more highly.

 

[domination2580]

I've had my finnex for over 3 years.... still have to have an issue

 

[fish farmer]

I have one of those hagen glass thermometers..had it for a long time. It is reading just over the green "safe zone" just over 80 degrees. My digital Coralife thermo is right around 80.3, I've had that thermo for years as well.

 

[ZoWhat]

call your grandma and see if she has an old MECURY glass thermometer.

those things are gonna last 10,000yrs....but then the US Gov took them away from us bc mercury supposedly makes kids brains into Dumb and Dumber.

 

[WannaBSpaghetti]

call your grandma and see if she has an old MECURY glass thermometer.

those things are gonna last 10,000yrs....but then the US Gov took them away from us bc mercury supposedly makes kids brains into Dumb and Dumber.

Trust me, plenty of stupid kids out there in a mercury free Country. God help us when we're all 80yrs old. We'll all be owned by the Chinese bc our kids are stupid and whimps

Well that took a turn.

Glass thermometers do last forever tho. If you have the side cash, you can't really go wrong with a controller people like the apex.