I use the floating glass thermometers that suction cup to the inside of the tank. I have one that isn't a floating one too, and I hate it because sometimes it comes loose and falls to the bottom of the tank. I found that the stickon kind vary, depending on the room temp. Sometimes, it has been as much as 5 degrees off.
Thermometers question
- Thread starter raseii
- Start date
The consistently wrong sticky types work perfectly fine for me. I set the tank temp once using an accurate thermometer, then I just compensate for whatever the sticky was off. Works perfectly fine for detecting any significant changes in temp.
I have the sticky type on a couple of tanks, and I've noticed that they are pretty inaccurate when the ambient temperature is quite different from the tank temp. Our house gets quite cool at night (in the winter) when the heat goes down, and warms in the day when the furnace gets turned up. The sticky thermometers do a lousy job when the room temp isn't close to the tank temp, or when the room temp changes dramatically relative to tank temp.
The in-the-tank thermometers are cheap and generally accurate, although I've never found any where the rubber suction cup lasts for more than a year or two. I've been using inexpensive digital indoor/outdoor thermometers for several years and they work quite well. Radio Shack sells a $9.99 model with a sealed temp probe that works well and has an easily to see readout. Most of these units are three to four years old and going strong.
HTH,
Jim
The in-the-tank thermometers are cheap and generally accurate, although I've never found any where the rubber suction cup lasts for more than a year or two. I've been using inexpensive digital indoor/outdoor thermometers for several years and they work quite well. Radio Shack sells a $9.99 model with a sealed temp probe that works well and has an easily to see readout. Most of these units are three to four years old and going strong.
HTH,
Jim
I concur w/JSCHMIDT. I recently bought a few from a recommendation from someone. They are consistent for me but are dependent on ambient temperature. Two of my tanks are in my basement where the ambient temperature can be high 50's low 60's. When that low the temperature on the thermometer reads 2 degrees lower than what the water temp is, 76. When the temp in the basement goes above 65, the temperature reads accurately.
