# Affordable humidity sensor? **URL:** \ **Category:** Connected Things\ **Created:** [July 23, 2016, 3:02pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395 "2016-07-23T15:02:24Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![gnrfan228](https://avatars.discourse-cdn.com/v4/letter/g/b3f665/32.png) [@gnrfan228](https://community.smartthings.com/u/gnrfan228)\ **Post date:** [July 23, 2016, 3:02pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/1 "2016-07-23T15:02:24Z")
I’m trying to do some more HA stuff on a budget. Can anyone tell me what the cheapest ST compatible indoor humidity sensor? I’m wanting to use a ST outlet that triggers a humidifier within a certain humidity range. Thanks! ---
**Author:** ![desertblade](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/desertblade/32/20506_2.png) [@desertblade](https://community.smartthings.com/u/desertblade)\ **Post date:** [July 23, 2016, 3:47pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/2 "2016-07-23T15:47:40Z")
Not sure “cheapest” is the way I would describe this one, but it gets the job done. $50 and is a motion sensor, temp, light sensor. That is how i justified the cost. [https://amzn.com/B0151Z8ZQY](https://amzn.com/B0151Z8ZQY) I use it in the basement to trigger lights on motion, and an outlet on a dehumidifier if moisture is too high. Did a test on just using the dehumidifier sensing moisture, and that thing ran all the time. Moving it to an external sensor to trigger cut the power usage by around 75%, and the dehumidifiers (even energy star ones) use a lot of juice. If you have a Nest you can also use that as a moisture sensor. Think you can with Ecobee too, but I don’t have one. edit: The sensor I mention does not come with batteries, but you can use a USB to run it. I believe batteries are a couple bucks. ---
**Author:** ![johnconstantelo](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/johnconstantelo/32/111869_2.png) [@johnconstantelo](https://community.smartthings.com/u/johnconstantelo)\ **Post date:** [July 23, 2016, 4:33pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/3 "2016-07-23T16:33:19Z")
It’s too bad these aren’t available any more. I have several, and I wish I had a couple more: > **[SmartThings SmartSense Temp/Humidity - - Amazon.com](https://www.amazon.com/gp/product/B00MOJBR0M/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1)** > > Extreme temperatures and humidity levels can freeze pipes, create leaks, encourage mold and cause thousands of dollars worth of damage. Protect your home and belongings by monitoring the temperature a ... ---
**Author:** ![JDRoberts](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/jdroberts/32/56577_2.png) [@JDRoberts](https://community.smartthings.com/u/JDRoberts)\ **Post date:** [July 23, 2016, 5:38pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/4 "2016-07-23T17:38:37Z")
Another option if you’re going to want multiple sensors is the kumostat wireless tags. You have to buy their ethernet bridge, which is about $40. But the individual sensors, which are very well engineered, run as low as $29. And their multisensor, which includes motion detection, is $39. So if you’re going to want more than 4, The Kumostat end up being less expensive than even the everspring zwave model. But the set up is more complicated. > [@Wireless Sensor Tags Integration](https://community.smartthings.com/t/wireless-sensor-tags-integration/5259): > > I have the first pass of an integration ready for Wireless Sensor Tags. There is a service manager SmartApp that allows you to log into your Wireless Sensor Tags account and reads what tags you have registered. You can then choose which tags to connect to SmartThings. The main support so far is for the Wireless Motion Sensor Tags (temperature, humidity, motion, and open/close plus more). The moisture / water sensor should also work, but I didn’t have one to test. The other types of tags should mostly work as well, since their system reports data consistently from the different tag types. You can get the code here: I’ve tested it quite a bit locally, but there may be a few bugs left to iron out. I need a couple beta testers to verify. smile Here is the link to the tags themselv… > **[Wireless Sensor Tag Products | Wireless Sensor Tags](https://store.wirelesstag.net/collections/all)** > > For new customers only: use discount code "TRYTAG" to receive 50% off for the required Ethernet Tag Manager. We offer 60 days return policy with free return shipping (USA only).   ![](https://global.discourse-cdn.com/smartthings/original/3X/8/8/88b7b545c3eec4ec83400a219671430e82dfde2a.jpeg) Kumostat also has a nice IFTTT channel which gives you additional indirect integration options. > **[Wireless Tag Integrations - Connect Your Apps with IFTTT](https://ifttt.com/wirelesstag)** > > Integrate Wireless Tag with over 900 of your favorite apps & devices to unlock powerful automations on IFTTT. Get started today! ---
**Author:** ![jpark40](https://avatars.discourse-cdn.com/v4/letter/j/9d8465/32.png) [@jpark40](https://community.smartthings.com/u/jpark40)\ **Post date:** [July 23, 2016, 6:04pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/5 "2016-07-23T18:04:46Z")
This works well for me with ST. > **[Amazon.com : ZOOZ Z-Wave 4-in-1 Sensor ZSE40 (motion / light / temperature / humidity) : Camera & Photo](https://www.amazon.com/ZOOZ-Z-Wave-Sensor-temperature-humidity/dp/B01AKSO80O)** > > Model Number: ZSE40 Z-Wave Signal Frequency: 908.42 MHz Power: 2 AAA batteries Range: Up to 100 feet line of sight Operating Temperature: 5° - 104° F Installation and Use: Indoor only In the box: 4-in ... ---
**Author:** ![gnrfan228](https://avatars.discourse-cdn.com/v4/letter/g/b3f665/32.png) [@gnrfan228](https://community.smartthings.com/u/gnrfan228)\ **Post date:** [July 23, 2016, 6:32pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/6 "2016-07-23T18:32:15Z")
Thanks so much for the replies everyone! I already have one of the Aeotec MS6 for outside, was hoping to go with something cheaper since I just need a humidity sensor. I’ll probably just wait. Hopefully those smartsense humidity sensors come back. Is there any word on them? ---
**Author:** ![bridaus](https://yyz2.discourse-cdn.com/smartthings/user_avatar/community.smartthings.com/bridaus/32/94511_2.png) [@bridaus](https://community.smartthings.com/u/bridaus)\ **Post date:** [July 23, 2016, 8:20pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/7 "2016-07-23T20:20:40Z")
If you are the DIY type, this looks really inexpensive and could be fun: [https://github.com/gonium/esp8266-dht22-sensor](https://github.com/gonium/esp8266-dht22-sensor) ---
**Author:** ![marktheknife](https://avatars.discourse-cdn.com/v4/letter/m/7feea3/32.png) [@marktheknife](https://community.smartthings.com/u/marktheknife)\ **Post date:** [July 23, 2016, 11:39pm UTC](https://community.smartthings.com/t/affordable-humidity-sensor/53395/8 "2016-07-23T23:39:34Z")
I use the everspring z-wave temp/humidity sensor. Primarily for the temperature, which I find to be consistent but usually 1-2 degrees F less than a reference thermometer. I think it’s tough for these small electronic devices to be as accurate with humidity. This one’s probably 5ish % off, but both over and under, a calibrated electronic hygrometer. Right now they’re $46 on amazon. > **[Everspring Z-Wave Temperature & Humidity Sensor (ST814-2): Amazon.com: Industrial & Scientific](https://www.amazon.com/Everspring-Z-Wave-Temperature-Humidity-ST814-2/dp/B00RYWBBU0)** > > The Everspring Z-Wave TemperatureHumidity Sensor warns you when a rooms temperature or humidity reach preset trigger values. When significant change is detected the sensor signals your Z-Wave enabled ... I have three, I bought two of them on ebay for $40, new, no different than the one I got from this same seller on amazon. Not sure if there are any other sensors around now that are much cheaper.