Customer Reviews

Oregon Scientific THGN123N Ultra Cold Temp/Humidity Sensor

5 star:		(5)
4 star:		(1)
3 star:		(0)
2 star:		(0)
1 star:		(1)

 

 

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).

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.

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.

I have the John Deer thermometer in the house, one remote in the garage, and I've placed this third one in my chicken coop to tell me when I need to turn on the heat or winterize. It works great, no problems with it staying in sync and batteries seem to last quite some time. If I have another place to put one I will.

And that's why it loses one star in my review.

For my purposes I didn't need this extreme temperature "ultra cold" model. But obsolescence breeds contempt: For whatever reason Oregon Scientific no longer sells the standard model THGN132N (yes, that's 132N versus 123N) temp/humidity sensor. Which means you are stuck buying this model - about about a fifteen dollar higher price point - whether you want to or not. This one sensor alone cost half the price I paid for my entire Oregon Scientific WR606 weather radio - which included one sensor with it. So the THGN123N sensor is getting dinged one star for the high price point.

As a sensor, what is there to say? It works. It has a decent range. Side by side with the 132N model they both produce the same readings. A plus might be that it runs on 2 AA batteries so I would expect it to have a longer run time between battery changes. (Amazon is confused on this point: No matter what type chemistry batteries you use in it they are AA size - not AAA.)

For those who will be using it in extreme cold, below freezing, temperatures lithium batteries are reccomended because lithium batteries have a lower freezing point than alkaline batteries.

good quality, reasonable price, have used it for 2 months and found it very accurate

Ordered the itemwhich was defective when received. Requested a return authorizatiion which tookalmost two weeks. Returned the item almost a month ago with no response. Would not buy from this company again.