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Wireless Temperature Alarm

Discussion in 'Growing Areas' started by Candace, Sep 30, 2009.

  1. Candace

    Candace Kept Woman Supporting Member

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    I currently use an Oregon Scientific Temperature alarm(wireless). It's worked fine for my needs with g.h. #1 over the years. For g.h. #2 I need something with a longer range-like at least 150 ft. I'm not finding much that would work. I did find this site http://www.absoluteautomation.com/temperature_alert/index.html and although it's much more expensive than the Oregon Scientific type sensors, I thought it looked pretty cool. Anyone use one? Or have a brand that gets at least a 150 ft. range? I really only need one that reads temperature with a hi/low alarm. Wireless is a must. Humidity read-out would be neat but not necessary.
     
  2. Clark

    Clark Gator Member

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    Candace, do you have an observational change? My second greenhouse is a little lower than the house. I had to hang the one in the lower elevation greenhouse to get it to receive in the house. by the way I use what yo have and the greenhouse is more than 150 feet away.
     
  3. Candace

    Candace Kept Woman Supporting Member

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    I didn't think to move the receiver into the other one to see if it would work. But, the range on mine is 100ft so I expected it not to. I'll have to try it.
     
  4. abaxter

    abaxter New Member

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    Candace, I just bought a new one at Tech Instrumentation to use as a back-up for my
    old Radio Shack. So far, it's doing well. Check out their website.
     
  5. Candace

    Candace Kept Woman Supporting Member

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    Thanks, but is it good for over a 150ft range? There are many on the market, but most are only good for 100ft coverage.
     
  6. Candace

    Candace Kept Woman Supporting Member

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    Thanks Clark, I tried it in g.h.#2 and it seems be able to reach. I'll have to buy another one now that I know it works. I bet as soon as the battery starts to get weak though, the reception will fail. I'll have to watch out for that.
     
  7. EdM

    EdM Member in Good Standing

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    Candace, I have one I bought on-line from Radio Shack about ten years ago that has a range of 250 ft. I don't see it on their website anymore, but it would be great if higher range units were readily available inexpensively.

    Here is a swimming pool/hot tub monitor that may work: http://www.brookstone.com/pool-and-beach-products_wireless-water-temperature-monitor-system.html

    Here is a nice one with a 1300 ft range. http://www.specmeters.com/Weather_Instruments/WatchDog_Wireless_Crop_Monitor.html
     
  8. Candace

    Candace Kept Woman Supporting Member

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    Thanks, Ed. I wish higher range units were more readily available too.
     
  9. Armando

    Armando Hobbyist gone wild

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    $299 is way too much for this, almost the price of a Sensaphone 400!
     
  10. abaxter

    abaxter New Member

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    The model I bought from Tech Instrumentation is rated for 150'. My gh is 130' from the
    receiver and doing well. Model number is ws-9029u-it.
     
  11. Ray

    Ray Orchid Iconoclast Supporting Member

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    Their website says 300 feet range.

    Does anyone know of a wireless temperatire sensor for a sensaphone?
     
  12. Candace

    Candace Kept Woman Supporting Member

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    Ray, I haven't checked the website, but many times the models have a rain gauge which is good for 300ft. Then you read closer and the temp. etc. range is only good for 100. :<

    Thanks much, I'll look into it!
     
  13. Pook

    Pook Disneyed

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    Candace, I have an Oregon Scientific with a sensor good for 300 ft. However it no longer appears available. So I found a sensor on their site good for transmitting up to 330 ft. Then from its description there are 3 compatible base units, the cheapest being the WMR90A.
     
  14. abaxter

    abaxter New Member

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    You're right, Ray. The model I bought is up to 330' and is quite accurate. Only
    34.00 too. I'd forgotten all that. Thanks.
     
  15. Candace

    Candace Kept Woman Supporting Member

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  16. abaxter

    abaxter New Member

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    Candace, I didn't want to pay for an alarm to be truthful. I've had two systems with
    alarms and in testing the alarms I found that they were too soft to hear unless one
    of us happened to be standing right beside it. Wouldn't even wake the dogs up! The
    only really good alarm system I know of is the Sensaphone and it's an aggravation here
    in the spring with temps. swinging wildly. The one we had on four commercial greenhouses often "goofed" and called everyone on the list over a temp. drop of a
    couple of degrees...usually around 3 a.m. The thing pissed everybody off!
     
  17. Candace

    Candace Kept Woman Supporting Member

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    Hmmm. Thanks. An alarm is priority #1 so it looks like I'll have to stick to the Oregon Scientific. My current one has a pretty loud alarm on it. It went off just a few days ago when I was testing the range of the new g.h. It got over 100 in there since there are no systems set up. The alarm got my attention, that's for sure!
     
  18. Ray

    Ray Orchid Iconoclast Supporting Member

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    I agree, Angela.

    I have a Sensaphone, currently connected via X10 to a thermalarm, but X10 is not overly reliable, so that's why I'm trying to find a wireless relay to connect to the Sensaphone.