My DT has run at 77.7 to 78.3 for years. I test with 3 different digital temperature probes and one glass thermometer to calibrate my controller. Each provides a consistent read of 78.1-78.3.
As a matter of safety, my two 300watt current heaters are two years old, so I replaced them.
I bought two 300 watt Aquarium Masters digital heaters which claim high degree of accuracy.
Each was $100 bucks.
Both indicate the DT water is 81 degrees.
Both off 3 degrees. Wow!
If I didn’t know the water temp before trying, I would have thought this was correct. Not 1 incorrect, but both by the same amount.
Beware.
As a matter of safety, my two 300watt current heaters are two years old, so I replaced them.
I bought two 300 watt Aquarium Masters digital heaters which claim high degree of accuracy.
Each was $100 bucks.
Both indicate the DT water is 81 degrees.
Both off 3 degrees. Wow!
If I didn’t know the water temp before trying, I would have thought this was correct. Not 1 incorrect, but both by the same amount.
Beware.