Temperature controller suggestion please!

[rocklobster1]

The probe on the inkbird is totally fine and does not need to be sealed
There is no need to do anything special to it.. Its totally fine..

I use an inkbird now (6+ months) and its worked great so far..
I have another temp probe on my reef controller that has the exact same stainless sensor and I've had it for 10+ years and it has not shown a single sign of rust..

There are different grades of stainless.. some perform better than the others but it usually takes a LONG time before some stainless will show any problems.. Many pumps have stainless steel screws holding the casing together,etc...

Again.. its totally fine and does not require any additional sealing..
Lets not spread false rumors... this hobby has enough already..

Ok great my only concern was that I have small tanks only 18g total water volume and I dont do water changes more than 10% per year so any toxic metal would accumulate all year.

 

[mcgyvr]

Ok great my only concern was that I have small tanks only 18g total water volume and I dont do water changes more than 10% per year so any toxic metal would accumulate all year.

You have no need to be concerned..
Nothing about stainless is toxic.. even if it was to rust..

 

[nycman]

Does this inkbird sound an audible alarm when water temp is too high or too low (outside of a preset range)? I do not want an alarm. My tap water is very cold and when I start the controller on fresh tap that I want to heat, I do not want to hear an alarm for hours on end until the temp reaches the lower limit. Same on the upper limit if I add a supplemental (non controlled) high wattage heater to speed the heating and surpass the upper limit.

 

[mcgyvr]

Does this inkbird sound an audible alarm when water temp is too high or too low (outside of a preset range)? I do not want an alarm. My tap water is very cold and when I start the controller on fresh tap that I want to heat, I do not want to hear an alarm for hours on end until the temp reaches the lower limit. Same on the upper limit if I add a supplemental (non controlled) high wattage heater to speed the heating and surpass the upper limit.

Over-temperature and sensor fault alarm;

http://www.ink-bird.com/products-temperature-controller-itc306t.html

I do not believe the Ranco has an alarm..

 

[Scott07]

Does this inkbird sound an audible alarm when water temp is too high or too low (outside of a preset range)? I do not want an alarm. My tap water is very cold and when I start the controller on fresh tap that I want to heat, I do not want to hear an alarm for hours on end until the temp reaches the lower limit. Same on the upper limit if I add a supplemental (non controlled) high wattage heater to speed the heating and surpass the upper limit.

No alarm when the temp is below the range, but i do believe you get one when above. The alarm also buzzes when you disconnect the temp probe, and it is rather loud and annoying.

 

[nycman]

No alarm when the temp is below the range, but i do believe you get one when above. The alarm also buzzes when you disconnect the temp probe, and it is rather loud and annoying.

many thanks

 

[rocklobster1]

https://www.amazon.com/Inkbird-Prog...=1518643349&sr=8-1&keywords=inkbird+blue&th=1
http://www.ink-bird.com/products-temperature-controller-itc306t.html
ITC-306T version.. $30 shipped to your door
Has over temp buzzer and works great..

URR now I have to return 3 of these... Over temp buzzer is not an alarm that you can set.. It is a buzzer if the temperature goes over 210 degrees. Thanks for that but my tank will be long dead at even 200 degrees...

 

[rocklobster1]

No alarm when the temp is below the range, but i do believe you get one when above. The alarm also buzzes when you disconnect the temp probe, and it is rather loud and annoying.

The 306T is perfect. It will sound an alarm if the temp drops below negative 58 degrees or above 210 only no other alarms.

 

[Valentini89]

The probe on my inkbird is rusting a bit- so, I dunno... But just today my temp was off and the alarm was sounding. I'm going to check the temp with a digital thermometer later on.. I've had my inkbird a lil over a year.

 

[mcgyvr]

URR now I have to return 3 of these... Over temp buzzer is not an alarm that you can set.. It is a buzzer if the temperature goes over 210 degrees. Thanks for that but my tank will be long dead at even 200 degrees...

Didn't see where you specified you wanted to set the alarm thresholds..

Since you should be using this to turn your heaters on/off overtemperature problems can only then come from a failure of a the temperature sensor or additional heat sources not controlled by the temperature controller..

For those that don't want to read the manual..

6.1 Sensor Fault Alarm: when temperature sensor is in short circuit or open loop, the controller will initiate sensor fault mode, and cancel all the actions. The buzzer will alarm, LED displays ER. Buzzer alarm could be dismissed by pressing any key. After faults solved, the system will return to normal working mode.
6.2 Over-temperature Alarm: when measured temperature exceeds the measuring range (less than -50°C /-58° F or higher than 99 °C/210 ° F), the controller will initiate over-temperature alarm mode, and cancel all the actions. The buzzer will alarm, LED displays HL. Buzzer alarm could be dismissed by pressing any key. When temperature returns to measuring range, the system will return to normal working status.

 

[rocklobster1]

Didn't see where you specified you wanted to set the alarm thresholds..

Since you should be using this to turn your heaters on/off overtemperature problems can only then come from a failure of a the temperature sensor or additional heat sources not controlled by the temperature controller..

For those that don't want to read the manual..

And for those that didnt read the OPs post: "What I would like is a simple temperature controller that has an audible alarm if the temp goes out of range."

 

[rocklobster1]

You have no need to be concerned..
Nothing about stainless is toxic.. even if it was to rust..

Also Im pretty sure this statement is blatantly false.

 

[mcgyvr]

Also Im pretty sure this statement is blatantly false.

Its not..

 

[rocklobster1]

Its not..

And do you have any sort of control experiment to bring validity to this seemingly very confident statement? Or is this just anecdotal experience.. BECAUSE almost every element in stainless steel is certainly lethal to a reef tank if it were to leach out in any noticeable amounts. Not to mention there are many different grades of stainless some not very corrosion resistant at all.