Easy to use!
Great product and so easy to set up and exactly what I was looking for. Thank you.

UPDATED please read…The replacement works good! Outstanding customer service.
Final update…I’ve been using the firmware updated replacement a few months now. It works really well.There was only one instance where I unplugged it to adjust to a significant and fast environment change. It reset and all is good!….,………..They gave a full refund and shipped an updated new replacement!There has been a software update to make it not react to rapid temperature and humidity changes. The replacement has been working perfectly now.The seller responded that the issue is due to temperature and humidity changes which cause the reading to “drift”. They have updated the software for this gas detector. They sent an updated model to try. They also gave a full refund without my asking………………Problem Solved!The Techamor y401 gave us false readings every day. The problems began when it was only a few weeks old, I ordered it in January. It read a constant 1-3, on occasion and it went up to 4-5 and triggered the alarm! It would sometimes read a 0, but only on occasion. I moved it to many different locations indoors and out, and had the same result. It was so erratic that I couldn’t trust it. I unplugged it and ordered a real Gas leak detector like plumbers use in order to verify what was happening.The new gas detector is handheld and extremely sensitive, detecting as little as 50 parts per million! I took the new gas detector around the house, to every gas appliance (and every drain opening in case methane was coming up through the plumbing). I did this repeatedly over a period of days and it never detected a gas leak!!I tested the hand held gas detector with both propane and natural gas. It reacted correctly and once the alarm sounded and I turned off the gas, the meter showed lowering gas levels until it returned to it’s baseline. I detected both gases before I could smell them! It never once provided a false reading. But it’s not practical for 24/7 monitoring.Then I plugged the Techamor y401 back in, and compared it to the professional gas detector. The Techamor again showed gas when there was none. It’s junk. Had I trusted the Techamor and called the fire department when the alarm sounded, it would have been embarrassing, and scared my condo neighbors! And wasted the Fire Department’s resources.Without an accurate and sensitive device to compare, I question so many reviews that say it’s accurate! How do so many reviewers have a way of knowing. Yes, it did sound the alarm when I tested it with propane and natural gas. However, it went off several times when there was zero gas in the air. It went off when we used the toaster oven! And when I was washing dishes! How can you trust it to do one thing when it doesn’t do the other correctly?I prefer a plug in detector that provides a constant readout in order to detect when a gas burner is inadvertently bumped on! Now, I don’t know what to trust! I don’t know if this is typical for the Techamor y401, or if it’s defective.

Detected a gas leak
Detected a gas leak in my kitchen! Worked instantly and started making noise. Saved me and my family

Functionality
Compact and sleek. The sound is loud when you plug it in and assume it will be if it ever goes off

This unit is extremely well made and recommended

I needed a CO2 machine for inside my home fast and Amazon provided quick delivery as well as it was so easy to set up.I literally had to do nothing but take the device out of the package and plug it in a wall outlet.This is a very good, useful and easy to use product and I will be getting another one later.Another good thing about this device is that you don’t need to buy batteries to put in it like others. Love this product!

Nice and compact, they plug-in and you can test them using a butane lighter by snuffing out the flame and only releasing butane next to the sensor opening.