Finnex HC810-M Digital Controller

I have 2 x 300w ehiem heaters plugged into this unit. I set it and forget it. Have been running for 1 week and temp stays stable. Great device to keep temperature stable.

Paired this controller with an 800 watt heater. Keeping the water temp in my 300g system very stable.

This is by far the best, everybody should by one if you want exact temp control, can't say enough good things about this product.

i would recommend this to anyone. great controller and keeps very accurate temp. will buy another for backup protection.

Good price Very reliable as I have many of this brand

I added 2 of these controllers with 800w finnex titanium heaters in the sump of my 500 gallon freshwater and it stays within 2 degrees of the setting clear to the bottom of the tank.<br>what a joy to own.

This is the 2 degree standard of heater controllers. Meaning whatever you set it has to drop a degree to heat up. Then when it does it heats over the set point by one degree to stop. So 78 set would be 77 to turn on and 79 to turn off. I was using an elaborate controller that did a lot of other things but 3 years in either the heater prob died or the controller. So thought would go basic again and this handles two heaters on my 180 reef. Seems well built and easy to program. Dual relays for for over temp safety with alarms and a memory that if you lose power it remembers the settings you had.

Excellent heater and controller. Really gets the job done. Like the alarm feature if temperature is too high or too low. My only complaint is that when it is unplugged, all of the settings need to be re-set. Have used many heaters and controllers, and this is one of the best.&quot;