🌡️ DZS Elec Temperature Controller: -50 to 110 Celsius / (-58 to 230 F) Programmable Thermostat Module for Heating/Cooling Control, DC 12V, NTC Waterproof Sensor Probe, LED Display Review

I used this product on a fridge freezer. I like the dual display, set temperature and actual reading. I don't like screw connectors that don't hold wires. 16 gauge wire (for amperage) is stiff and stretches freely. Connectors don't have teeth to "grab" the wires. If a product is rated "20 amps" then the connectors must support it. I was so frustrated that with 3 wires connected and one wire disconnected I "hit the mole" trying to insert the last wire - I soldered them to the connectors. I…

Works as intended. Good compact size. I suspect that some unsatisfied customers have connected it incorrectly (the output relay is a dry contact only, so has no output power, so it must be connected in series (between) one leg of the power supply and the device being controlled). The screw terminals are a bit unreliable, you have to be careful with a sufficiently long end of the wires and tightening of the screws. With two caveats: - It is not possible to use the high temperature alarm P6 as…

Works as intended. Good compact size. I suspect that some dissatisfied customers have connected it wrong (the output relay is a dry contact only, ie it has no current output, so it has to be connected in series (between) one branch of the power supply and the device being controlled). The screw terminals are a bit unreliable, you have to be careful with a sufficiently long end of the wires and tightening of the screws. With two caveats: - It is not possible to use the high temperature alarm P6…

I rarely write reviews but this product was so bad I thought some reviews would be helpful. In short, the controller does not work. I put the first one and the relay did not turn on the load. I asked to be replaced. Installed the second and also did not help. Also, none of the settings can be changed. In both cases there were no problems with the return of goods. It seems like they know they have a defective product but build their business knowing that many people don't bother to return a…

First, if you have other sensors in the liquid at the same time, it can be caused. Second, and more importantly, the reading fluctuates so much that it keeps turning on and off no matter how you set it. Changing the return differential to try turning it on less will not help because as soon as you increase the return differential it will wobble more. Example: Let's say you need 68 degrees of cooling, but you don't want this thing to turn on and off many times per second, so do the inverse…