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  • Twine Portable Wi-Fi Sensor + Moisture Sensor
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Twine Portable Wi-Fi Sensor + Moisture Sensor


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We don't know when or if this item will be back in stock.
  • Twine + moisture sensor will let you know when your basement floods, when it rained, or the last time you watered your garden - even when you're not at home.
  • Gold-plated prongs resist corrosion.
  • 3' Cable allows you to mount your Twine on a wall out of harm's way.
  • Simple to set up and use via the Twine web app.
  • With the latest update, 2 AAA batteries can power Twine for up to 2 months, or use any external micro USB power supply.
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Product Description

Twine helps you detect small problems before they become big problems. Get notified of changes in moisture, temperature, vibration and more, even when you're not home. Prevent costly damage to your home - get an alert when your basement floods, the pipes freeze, or your water heater leaks. The external sensor port lets you use a different sensor later, such as a magnetic switch, breakout board, or Cloud Shield.

Twine is the simplest way to get the objects in your life emailing, texting*, calling* or tweeting. The Twine + Moisture Sensor kit includes Twine (with internal temperature and orientation sensors), an external moisture sensor, and a 3' cable. Twine runs on external power or two AAA batteries and connects to the Internet via your Wi-Fi network. A simple web app lets you monitor your Twine and tell it when to alert you with human-friendly rules - no programming needed.

(*with paid plan)


Product Information

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Brand NameSupermechanical
Battery Typebattery_type_aaa
  
Additional Information
ASINB009YWTOF2
Best Sellers Rank #36,442 in Computers & Accessories (See top 100)
Shipping Weight10.4 ounces
Date First AvailableOctober 30, 2012
  
Warranty & Support
Amazon.com Return Policy: You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellableRead more condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

Product Warranty: For warranty information about this product, please click here
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Customer Questions & Answers

Customer Reviews

3.2 out of 5 stars

Most Helpful Customer Reviews

13 of 15 people found the following review helpful By R. Pettengill on January 15, 2013
Be sure to check out the Supermechanical Twine forums that are full of disappointed owners.

My Twine was ordered via Kickstarter. Although it was delivered more than half a year late, it is still half baked. The key advantage that it claimed over competitors is that it could last months on battery power. In reality it lasts a couple of weeks at best although they claim a month now. Add to this that it is very difficult to take the cover off - several minutes of pulling and tugging to change batteries! Any real application of it needs an external power supply.

The software still doesn't offer the features promised over a year ago. It cannot send SMS notifications - it uses your phone carrier's email gateway and each email appears to come from a different phone number - as a result your phone can't group the Twine notifications together resulting in a SPAM effect.

The promised vibration sensor just reports what direction the Twine is facing - a much less useful function.

As delivered the temperature sensor alert was very poorly thought out resulting in notifications for a given setting both when the temperature rises above and falls below the setting.

The Twine is dependent on closed software and an external server operated by Supermechanical, so as soon as they go out of business or decide to charge a monthly fee, your Twine is a brick.

Supermechanical has great ideas on how this kind of device could be used, but so far their execution has fallen well short of a device with any practical use.

There are competitive products like the Raspberry Pi that use small external supplies, that cost a fraction of what the twine does, are much more functional and have large communities of open source developers adding new features.
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10 of 11 people found the following review helpful By brainmist on January 23, 2013
I helped fund this product (along with 3965 other suckers, most of whom seem to be kicking themselves now). I was excited at the idea of being able to monitor vibration at my door or on my stairs, allowing me to tell when I had a delivery or someone was checking on my dog while I travel. What I got, finally, months after the projected delivery date, was a rubber-wrapped chunk of plastic that doesn't monitor vibration, doesn't have the promised battery life...pretty much the only thing it DOES do is disappoint. The rubber sleeve gaps in places, offering no real protection, and yet is ridiculously hard to remove to change the batteries, which you'll find you must do almost immediately with the included ones. I played with it a bit, tried to imagine some possible use for a device which can only tell you which side is up and whether its sensor is wet, then got bored and put it on the shelf. One thing I can say about the rubber sleeve: it is excellent at collecting dust.

I like the website, but the rule options are limited. I guess they put more into the look than the function. As to the device itself, even the look is pretty shoddy...certainly not something you'd expect to pay $125 for (the Kickstarter price). I can't imagine someone paying $174 for this...but if you would, I have one I'm happy to unload. And also a bridge I'd like to sell you.
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I love my twine - I can monitor my vacation home - temperature, AC power, and water leaks - and check it anytime I want. I also was also to configure a web-based logging system using ThingSpeak which is very cool and shows temperature variance over days. It is an early technology and still being debugged, but the support is great, the community is very active, and the whole concept is well-executed. It requires some effort to do more sophisticated monitoring but is well-worth it.
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2 of 3 people found the following review helpful By J. G. Peterson on April 10, 2013
I was one of the many Kickstarter funders for the Twine. Aesthetically and innovation-wise, this is an interesting product, but it is not by any means perfect. Everything down to sensor design/build and even packaging is nicely done and has a hip/modern/quality feel. It is too bad, though, that they could not go with their original molded-plastic case and had to make do with the rubber sleeve, but I certainly understand that not every initial design is workable.

To read the unit's data, users are forced to use the manufacturer's cloud-based system, which is web-based and can send customized alerts (e.g. via email). Overall, this works, but it does create a reliance on the company's infrastructure. I would personally like to be able to get data directly from the unit as an option, even though the web-based UI is attractive and certainly easy to use (albeit rather simple as well).

I agree with others that the battery life is terrible, and to mitigate this, the unit defaults to a very slow update rate. The web-interface announces this fact and urges the user to "turn the unit over" to start faster communication. However, I have seen it speed up without doing this as well when on the web page. There seems to be no way to set the rate manually and keep it at that rate, and the vague terminology and mysterious behaviors where this is concerned are odd, I think. I have the Twine on a USB AC adapter to save battery life (the only practical way to use it in reality, but it still alerts me the batteries are low...I have not tried removing them yet to see if it works on AC only and disables these alerts).

I've been just playing with it so far, but I intend to put it in our basement to detect low temps or water leaks. If it serves well for this, then it will be a nice thing to have, but for true geeks (I confess I am one), open access to the internals (and not just through their cloud) would make it more appealing.
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