Own a inkbird thanks to fish tank Travis's advice on here. I'm running a 1000 watt heater on it in a 125 and works like a charm.
Glad it’s working out well for you.
I use them on all of my tanks. The newer models have a replacement probe that plugs in via headphone-style jack and are only $10 for replacements. I have had several probes go out, so make sure you keep a separate thermometer on the tank to double check the temp. When the probe starts going out, it causes the unit to display the wrong temp so you won’t know it’s going out unless you have a second thermometer to compare it to. I coated my most recent probes in silicone grease and they have held up much longer than the previous probes. If I ever have to replace them again, I will probably just coat the new ones in silicone and let it cure before using them.
They are good to 1000W and there is a new model out that is good to 1800W. I have heard of issues with the 306 model, but I have not heard anything bad about the 308 models. I chose to go with the 308 models for my tanks and just use a splitter cord to connect two heaters to the single heating port. They have been working great for a few years now.
Another benefit is that they have high and low alarms. This is useful in case the heater(s) goes out and stops heating, the controller will set off an audible alarm alerting you to the low temp. Same thing for high, but I’ve never heard of an Inkbird getting stuck on.