Products are well made but. Customer support is poor. Billiing dept is outright hostile. When subscriptions expire, they continue to charge vs terminate so then they send threatening emails demanding payment. VERY poor customer care. Exceptional arrogance for middling company.
Response from MonnitOct 31, 2025
We’re disappointed to hear about your experience, and truly appreciate your feedback.
While we’re glad to know you value the quality of our products, we’re disappointed your interaction with our support and billing teams didn’t reflect the high standards we aim for.
We take experiences like this seriously. Our goal is to ensure every customer feels respected and supported.
Thank you for bringing this to our attention. We value your business and the opportunity to improve.
MA
Mark
Unreliable and poor customer service in the UK
There are clearly reliability issues with these Monnit ALTA products, but worse still is the poor after-sales service (from my experience with the UK retailer - see the Trustpilot review for wireless-sensors.co.uk in the UK).
Monnit reputation is being let down by this retailer and the review would have been so positive if they'd handled it properly.
I purchased Monnit ALTA sensors and gateway from Wireless-sensors UK/Measurement Systems Ltd (Datanamics) in the UK. They are agent/retailers for the Monnit range.
I've been a Monnit and Wireless Sensors UK customer now for over 7 years. I use the sensors on my boat to monitor it remotely. Despite claims of durability etc., my experience of the reliability and particularly the after-sales service (in the UK) has been negative.
I bought an ALTA AA Monnit water detect sensor in July 2023, which failed after only 14 months despite being operated within the specified operating range of temperature etc. The UK retailer acknowledged it was faulty and told me it couldn't be repaired, but when I sought a repair or replacement or a full or partial refund under the 6 year protection described in the UK Consumer Rights Act 2015, they refused and told me to just buy another one for more money than the original cost and referred to the 12 month warranty.
Product information about the Monnit ALTA range on the site gives the impression that these are quality products offering many years of expected life. These are expensive sensors described as "enterprise grade" with battery life of "10 years plus" and designed for operation in environments which include boats. I had an earlier failure with a Monnit gateway and had to buy that one again too.
When these sensors work, they work well, but I'm really disappointed by how they respond when their products fail. I understand that things can fail, but I think Monnit are really being let down by Wireless-sensors UK and their customer care.
What I expected was a response like "sorry, we'll arrange a repair", or "sorry, we'll give a you a 50% refund as it is unusual for it to have failed in just 14 months". All I got was that I needed to buy it again for more money.
I'm hoping Wireless-sensors UK and/or Monnit will eventually provide a better response once they've read the UK Consumer Rights Act 2015. In fairness to both companies, I'll delete or update this review if there's a more positive update.
Response from MonnitDec 8, 2025
Thank you for taking the time to share such a detailed review and for being a loyal customer for more than seven years. Your experience with both product reliability and after-sales support in the UK is clearly not what you expected, and your frustration is completely understandable.
While this reply cannot change what has already happened, your feedback will be taken seriously. It points to two important needs:
* Clearer alignment and expectations with UK partners regarding customer care.
* Better support paths for cases where products fail earlier than reasonably expected, even outside standard warranty.
Thank you again for your time and review.
RG
Russell G.
Does not work as advertised
We have about 20k worth of Monnit sensors installed at a large cold storage facility. We have 44 sensors installed throughout the facility none of which are more than 150ft from the gateway. We have never gotten better than 30 sensors checking in at a time. We have worked with technical support multiple times to try to address this. We have pulled all the sensors, re-oreinted them, installed special antena. Again and again Monnit tells us that their equipment "just works" and that we must be doing something wrong. We have probably put $10k worth of labor into pulling sensors in and out of the freezer to try to get them to work. It's hopeless. They just don't work as well as advertised and Monnit refuses to admit it.
Response from MonnitDec 8, 2025
Thank you for taking the time to share this, and for being so specific about your setup and efforts. It’s completely understandable that you’re frustrated and disappointed with the performance and the support you’ve received.
Your feedback is important to us. We take feedback and reviews seriously, and we appreciate your time and patronage.
KD
Kimiko Della C.
Talk nice but not helpful
We have been using their device for a while and I had been happy with them and their service. I don't know what happen but they made so much more difficult when I had to renew our annual service contract this year. For some reason, I couldn't purchase its contract when I followed its instruction on web. When I called, they kept on asking what our account name is. Since I didn't open the account, I didn't know. They have been sending our account information to my email account. So I feel like they can do something with my email address. But no. They couldn't even tell me how I can find out what our account name is. Finally I figured out. It was rather simple. Log in to our account and click on Settings. How couldn't they tell me that. As all this is happening, our premier contract expired. But we should still get basic service for free so I wasn't worried. But today I checked our notification settings. All our methods of notification were clicked off. This is after I was able to renew our premier contract. So we would not have gotten any notification if our devices were not working. They talked very nicely but I didn't enjoy communicating with them.
Response from MonnitOct 19, 2021
Kimiko,
Thank you for your feedback. We recognize the importance of accessible, stress-free communication and are disappointed to hear of your experience. Rest assured we take all reviews seriously.
TA
Tim A.
Never shipped anything
I placed an order at the end of January and the only thing I have received are emails asking for a review. No communication and the order status information on the website gives 0 info. I recommend shipping the product before asking for reviews. 2 weeks lead time....fine. 3 weeks and no communication...not ok.
Response from MonnitOct 18, 2021
Tim
We are sorry to hear about your experience. Thank you for taking the time to leave us a review. We have addressed shipping issues and implanted precedes to streamline our process.
MI
M.I.
Abhorrent customer service and delivery time
Product was ok, but customer service and lag time/delivery is abhorrent. Starting with the purchasing process. In any business once you enter all of the information and click purchase now that's the end of the process, you only have to wait for delivery. In my case after completing everything online I had to wait over 4 weeks before I finally lost patience, called customer service only to find out that they never processed my purchase in the 1st place. With lag/waiting time of yet another 3 weeks I had to re-order and as result my program was delayed by 2 months! If this had been my investigation into them as a supplier I would never agree to work with this company ever again.
Response from MonnitNov 16, 2021
M.I.,
We're sorry to hear about your experience. We consistently look at our ordering process and customer service to best serve you promptly. Your feedback is appreciated.
DS
Diamond S Meat C.
We have 7 Monnit devices & 3 of them…
We have 7 Monnit devices & 3 of them work, Cannot get tech help. The ones that work are good.
Response from MonnitOct 25, 2021
We're sorry to hear about your difficulty. Please feel free to reach out to our knowledgeable support team if you are continuing to have issues.
BE
Ben
My experience has been Very difficult.
Update: 2-27-19 They sent me an entire new system, I noticed the new sensors actually had the on/off switch in the correct location, The new Gateway is now Verizon 4G Lte and is working good, I am now hoping the sensors last with doing Heat Remediation work. Time will tell. I have used the sensors for about a week and they actually worked every jobsite.
My experience has been difficult and extremely frustrating at best. Communication is not the best and tech support is very very lacking. Afters of down time and countless wasted hours of tech support they finally are going to replace my system. Even then, billing is still not correct. The product concept they offer is exactly what I need, I just need it to actually work and work consistently. I need to be always followed up with. I need my billing to be fixed that has been incorrect for months. They need to properly identify the needs of a client then follow through to ensure its all working properly. Hopefully for my industry these ongoing issues will be corrected very soon. Note they finally have ordered a new set of units and they supplied an RMA for the current set. I am really hoping they actually work this time. I hope they already have them programmed in the system and made sure they work before they are sent to me. They had advised that I set up the units wrong at first. My response, send the units to me already programmed and ready to go. Have a tech support consultant ensure these units are setup and working with the client. Properly identify the clients needs and then give them equipment that actually works.
Response from MonnitDec 10, 2021
Thank you for your feedback. We have taken steps to streamline our customer experience to serve you better. Please feel free to reach out to us if there are further issues.