Certain things are more safe then others to buy used. Aquarium controllers?
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Awesome answer I love how you took the time to explain the "why?" Thanks!Typical failure rates of any electronic device don't decay that rapidly with time, pending the age of the device. Most electronic devices are prone to infant mortality type failures, sustain for quite some time, then start running into end of life issues (bathtub curve). This is true for most consumer products without mechanisms to wear. So if you were looking at like an Apex brain, I'd be comfortable. If you're looking at a power bar, there are more mechanisms / moving parts to degrade over time (relays) which is the nature of any product like it. I have purchased both used, at reasonable prices, understanding that I am accepting some risk of the part failing early. Both were fine. I upgraded the base unit, but am still using the EB8 after a couple of years.
Which unit are you looking at?
Used controllers are probably one of the least likely items to fail. I picked up a Reef Angel + about 18 months ago for $125; been great
Eeek. I'm already a worrier, lol.Just make sure you purchase from a reputable person. I've purchased used electronics that ran for me for years with no issue including controllers. Just do your homework
This^I wouldn't be so worried of the electronic as much as the probes. If it were me i would contact the manufacturer or see if anyone sells new probes for it.