Kumo Touch MHK2 RedLINK Wireless Thermostat & Receiver Kit

Love it. The app kind of sucks but it works. I need it to lock out the tenants so they dont run heat on one and a/c on the other head. I can't do this using just the remotes. I haven't figured out how to do it yet, but the options that are available are 100's long so Im working through it now. Easy to install!

Like it better than hand held remote that came with unit. You also will need to buy their wifi hub to connect this thermostat. I believe this equipment is overpriced, but if you need wifi go for it

I'm in a dilemma for how to rate this.My wife and I bought a home built in SoCal in the 1960s. The prior owner had put in a 6-head system in 2016ish. No thermostats were put in when it was installed, just had the remotes. Being a home of this age in SoCal, there is no insulation in the walls, so the units are highly suceptible to being thrown off by sun baking the outside of the house. In one room I can set the unit to 85F and the room will still be a meat locker at certain times of the day, wasting energy and money!The MHK2 makes a huge difference in the accuracy and usability of the indoor unit, it does what it advertises well and I just have one complaint from that perspective. With the units I have, the fan speed control is... disappointing. I can either select "Auto" or a set speed of 1-5 or something like that. For the space this particular unit is in, the Auto fan speed control is not aggressive enough to circulate air effectively through the space. But if I set the fan speed to one of the fixed speeds, it runs at that speed, regardless of whether or not it's actively cooling. Which means I have it set to the mid level setting, which for noise is noticeable but not loud, and does an OK job with the circulation. I would really like for the unit to be smart enough to switch to the lowest speed or turn off completely when the setpoint is met. I see these options are available for different indoor units, however my units (MSZ prefix) do not support it.Installation was pretty straightforward. I'd recommend seeking out some youtube videos specific to your indoor unit if you aren't familiar with removing the covers to get at the control board. Did they need to make the cable black, though? Even just the couple inches that are exposed where I mounted the receiver stick out like a sore thumb.However my main gripe is, these only control one unit, so at $300 apiece, I've only upgraded one so far-- $300 for functionality that is decidedly not modern. Considering you could get a basic programmable thermostat for a central system for ~$30, or Nest or similar for ~$100 which gets you modern connectivity as well, that makes this feel borderline criminal. Oh wait, you want to control the mini-splits from your phone? That'll set you back an additional ~$300 per unit. So to sum this up. If I wanted to outfit my entire system with basic, decades-old programming functionality, it'll cost me $1800. Add each to the Kumo cloud to centralize control of the units via the app and make changes from anywhere as well? Double it. This doesn't feel like paying a little extra for the brand name, it feels like being taken advantage of by a closed, poorly designed, customer-last ecosystem.I didn't win the billion dollar lotto, so we're stuck with what the previous owner installed for the foreseeable future. But if you're in the market for a system yourself-- I don't know why you'd be reading this review, but if you are-- I highly suggest you research other brands to see how they are controlled, and the associated costs for modern functionality / integration with home automation ecosystems or industry standards to see if there are better options out there.

Solved my major temp overshoot issue on hot days. Remote would be set to 80 and temp was dropping into the high 60’s. This wireless sensor for the most part has my temp within a couple of degrees. At this price point it should be dead accurate. Install was relatively easy.

We had a 4-head Mitsubishi Mini Split system installed last Summer. It came with hand held remote controls for each unit. The larger unit in the living room was very accurate- the temperature in the room would stay within one degree of the temperature we set on the remote control. In the three bedrooms, however, we had to set the remotes to 77 or 78 degrees for the room to be at 72. And in the Winter, we set the remotes to the lowest heat setting (61) and the rooms would go up to 80 degrees! The reason this happens is that the bedroom units are a little oversized, even with the lowest btu available (6000). The actual thermostats are in the units themselves, so they do not accurately reflect the true temperature in the room. The living room unit is more accurate because it is perfectly sized (12,000 btu) for that space. The MHK2 thermostats can be placed on an interior wall, away from the units themselves. The units send a signal to the thermostats thru Red Link technology. The room temperature is monitored and controlled by the MHK2. It provides much better control than the hand held remotes. Now the temperature in each bedroom is within one degree of what we set on the MHK2. I highly recommend the MHK2 if you want better control of your Mini Split system. You can put them anywhere you'd like- no more having to use a hand held remote!

Many buy the MHK2 to get the temperature sensor away from their head unit, which may be on an exterior wall, up high, down low, etc. We paid for this expensive Redlink device and are not happy with its primary function: a controller. In short, it does a bad job. Mounted right next to the old thermostat, in addition to having placed a third thermometer, the MHK2 will reflect temperatures (not settings) that range in differential from +1 to +6 degree F. Calling Mitsubishi, they recommended reverting to the head unit's sensor, which gave more accurate results but still allowed the call for heat to stop up to 2F short of the setting. I expect Mitsubishi may not swap for another, given many complaints about these units, and I'll be eating >$500 (MHK2 and Kumo) to instead control Mitsubishi's hardware (which I have no complaints about) using an Ecobee, or other.

Much more useful than the IR remote that came with the mini split. Temperature is measured at the MHK2 and is more stable. IR remote had to be exactily aimed and if it didn’t produce a beep, it didn’t program the mini split. MHK2 communicates 2 ways so you know what was programmed. Installation was a bit fidgety taking off the covers, but was otherwise do-able. Recommend this solution for any installation.

The accuracy of this thermostat is always off by 2-3 degrees. I have no idea what Mitshubishi is thinking and don't intend to find out I hope they improve and come up with a smart thermostat that works with the proprietary equipment they manufacture. Until then I'm stuck as I bought a house with the equipment and expensive to replace a unit. Here's my advice choose equipment other than Mitshubishi until they get it right with thermostats and other products that have smart capabilities.