Oregon Scientific THGN123N Ultra Cold Temp/Humidity Sensor

by Oregon Scientific

Product Features

• Wireless remote indoor/outdoor temp/humidity sensor for some OS weather stations
• Operates in temps down to -40 degrees F; transmits on 1 of 3 different receiver channels
• Transmits data from up to 100 feet from the main unit (various units sold separately)
• Requires 2 AAA lithium batteries to work in ultra-cold setting conditions
• Check Oregon Scientific?s Website for compatibility with your OS weather station

Product Details

• Shipping Weight: 4.8 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000F4VI1G
• Item model number: THGN123N
• Batteries: 2 AA batteries required.
• Average Customer Review: 4.3 out of 5 stars  See all reviews (7 customer reviews)
• Amazon Best Sellers Rank: #68,736 in Home & Garden (See Top 100 in Home & Garden)

Product Description

This temperature and humidity sensor can transmit data in even the coldest temperatures. When used with 2 AAA lithium batteries (not included), this sensor can transmit temperature and humidity data up to 100 feet, and will operate even at -40 degrees F. Has an easy-to-open battery cover and can transmit on one of three different channels. Please check sensor compatibility with your main unit before purchase.

Customer Reviews

Most Helpful Customer Reviews

8 of 8 people found the following review helpful:

5.0 out of 5 stars Sender works well through 2 floors @ 25' away, March 19, 2009

By 

M. Barnett (Michigan) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Oregon Scientific THGN123N Ultra Cold Temp/Humidity Sensor (Kitchen)

I bought the THGN123N sensor/sender to put in my attic where I've always wanted one. I already have a sensor outside and in my garage. We store a great deal in the garage and attic and I like to know when it's below freezing or scorching hot. The sensor works great with my BAR938HGA station. Remember to add a sender using this sequence:
Set channel switch in sender
Insert fresh batteries in sender
Reset the sender with a paper clip
Place sender near base station
Push and hold "Channel" button on base station to initiate a search for new senders.
My base station found the new THGN123N within 30 seconds
It works great through 2 ceilings and 2-3 walls. It is located 2 floors up and 25' diagonally through my house from the base unit.
Note: this sender does not have an LCD readout like my others do, due to it being designed for extreme conditions.
In the box: THGN123N sensor, Instructions, 2 alkaline batteries (they recommend using lithium e2 batteries for conditions prone to go below -4F).

1 of 1 people found the following review helpful:

5.0 out of 5 stars Use it every day, November 20, 2009

By 

J. Braeking "JB computer geek" (Richland Hills, TX USA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Oregon Scientific THGN123N Ultra Cold Temp/Humidity Sensor (Kitchen)

I haven't gotten it to a very low temperature yet as our average low is above freezing. However, it connected with my receiving unit (RMR203HGA) perfectly and has been working for a couple months now. It seems to be reasonably accurate compared to weather on TV. I don't have anything else to compare the accuracy.

Overall, a good unit.

5.0 out of 5 stars Uses limited only by your imagination, April 25, 2011

By 

Walter L. Luffman (Savannah, TN) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Oregon Scientific THGN123N Ultra Cold Temp/Humidity Sensor (Kitchen)

This Oregon Scientific sensor began its working life as a remote temperature/humidity sensor for my cigar humidor, until my wife got tired of switching channels on our wireless thermometer/hygrometer in order to check outside conditions. So I replaced it with a small thermometer/hygrometer that took up much less space inside the humidor, and gave up (temporarily) on remote monitoring of my cigars.

Now it has a new use, as a temperature sensor for a brooder-box full of baby chicks! It does this job perfectly, and later it may find still another home somewhere on our hobby farm.

A similar unit is outside our back door serving the more traditional purpose of measuring temperature and relative humidity outside, sending data to the base unit in our kitchen. We check it several times every day, and it has earned its keep many times over.

As for my cigars: I now have a second humidor, and will probably buy another Oregon Scientific weather station (complete with two fo these sensors) for my computer room so I can monitor both humidors without having to raise the lid -- although I do that a couple of times every day anyway just to retrieve a cigar.

Recommended.