Review on Temperature Controller Thermostat Waterproof Programmable by Ben Diesel

I'm an electronics technician. I have checked functions and connections to the best of my knowledge and belief. I will stick to facts and objective analysis without expressing opinions or comments. A: Excellent, B: Good, C: Average D: Poor, F: Poor I have purchased the following temperature control modules: a. UMLIFE XH-W1209 Digital LCD Thermostat Module b. Weewooday DC 12V Electronic Temperature Controller Module Both had similar problems -- 1. Instructions :D - not well written. 2. The mechanism for attaching wires: C - was bulky and of poor quality. 3. Physical Qualities: D -- Requires relatively little force to break (by hand only). 4. Performance: F -- ALL devices failed within 10 minutes. I bought the Weewooday module XH-W3001. Much better; built-in wires, programming instructions are simple and clear, excellent quality. In the test, the device still runs after warming up. It would take a lot more force to break this device. Instructions: B - better spelled Wire Attachment: A - embedded wires Physical Quality: B+ - durable Functional Quality: A - still works.