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  • Oregon Scientific THT312 Indoor/Outdoor Thermometer Clock with Wired Probe
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Oregon Scientific THT312 Indoor/Outdoor Thermometer Clock with Wired Probe

177 customer reviews

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  • Wired digital indoor and outdoor thermometer and clock from Oregon Scientific
  • Easy-to-read LCD display with blue LED backlight; with Celsius or Fahrenheit readings and 12- or 24-hour time for convenience
  • Weather-resistant 10-foot cable with probe runs outside to monitor temperature; alarm feature with 8-minute snooze
  • Requires separate purchase of 2 AA batteries; wall mount or stand alone
  • Measures 2-1/2 inches wide by 3/4 inches deep by 4-1/2 inches high; limited 1-year guarantee

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Product Description

Oregon Scientifics THT312 Digital Clock with Thermometer conveniently displays the time, indoor temperature and outdoor temperature via an easy-to-read LCD display. This unit features a 10 foot weather resistant probe which monitors outdoor temperature for display to the main unit. A convenient LED backlight provides easy viewing in all conditions. This compact unit can be wall mounted or displayed on a desk top or shelf. Features: Waterproof outdoor probe LED backlight LCD displays time, indoor & outdoor temperature simultaneously Monitors indoor temperature from 23° to 122° F 10-foot cable with probe Wall mount or desk top display option Batteries: 2-AAA (Not Included) Dimensions: 2.5L x .7D x 4.1H (in.)


Product Details

  • Product Dimensions: 2.5 x 0.8 x 4.5 inches ; 5.3 ounces
  • Shipping Weight: 5.6 ounces
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Origin: China
  • ASIN: B0006G2WYU
  • Item model number: THT312
  • Batteries 2 AAA batteries required.
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (177 customer reviews)
  • Amazon Best Sellers Rank: #332,294 in Home & Kitchen (See Top 100 in Home & Kitchen)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

208 of 213 people found the following review helpful By R. Harris on May 28, 2008
I can't begin to tell you the abuse I've subjected this product to.

1- Used it on my RV. Probe was outside from freezing to desert for 6000 miles.

2- Took it up to Alaska and back, 15,000 miles.

3- Used it to determine the temp. of my developing solution (very caustic chemicals).

4- Now it's being pecked by chickens in my brooder.

I seem to never replace batteries in this. I can only remember doing it twice in 6 years.

Buy this product. Have no worries. It truly is a 5-star product.

2012 Update: Still works in my classroom. I think, after the nuclear armageddon, it will be the only piece of tech surviving.
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123 of 125 people found the following review helpful By Debbora B. Quayle on December 1, 2008
Verified Purchase
After reading a ton of reviews, I decided all of the moderately priced digital thermometers had flaws so I went with the brand that overall seemed well rated (Oregon Scientific). I also read that remote sensors were problematic so I chose this model because it uses an attached (wired) sensor. I am delighted with the performance of this model. I followed the instructions and placed the outdoor sensor in a protected location (the wire fits easily under my window (even with it locked for the winter). I've checked the indoor temp against my thermostat and it is within a few tenths of a degree. I've checked the outdoor temp against weather.com and the local radio station and it is also within tenths of a degree. That's accurate enough for me! I love having the clock too and the back-lighting comes in handy during the winter when it is dark in the morning. If you have a nearby window to run the wire through, you really can't go wrong with this thermometer.
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81 of 81 people found the following review helpful By Dylan Knight on February 8, 2007
Verified Purchase
This does what you want it to. Accurately tells the temp indoor and outside and refreshes itself about every 30 seconds. What more could you ask for? Theres also a blue backlight so you can press any button during the nightime. It also functions as a clock with an Alarm but I dont use it.
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43 of 43 people found the following review helpful By Tintinnabulator on April 14, 2007
Verified Purchase
I bought this to monitor the evening outdoor temperature. When it finally cools off enough outside, I turn the air conditioner off and run just the fan on fresh air. This was simple to set up and seems to work flawlessly. I like that a change in temperature registers very quickly in tenths of a degree.
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36 of 37 people found the following review helpful By MyBeesWax TOP 500 REVIEWERVINE VOICE on March 3, 2009
The Oregon Scientific Thermometer and Clock is incredibly durable. I bought it from Targét 5 years ago - and it still works as well as the day I bought it!

The LCD display is large enough so that it can be easily read from about 15' away. It has a backlight that you can turn on with the push of a button, which is conveniently located in front of the unit. The LCD screen has three lines for:

1) Time
2) Indoor Temperature
3) Outdoor Temperature

The unit has a 10' long probe for monitoring outdoor temperature (or the temperature of the location where you chose to place the probe).

Features
--------
- Maximum / Minimum Temperature
The readings don't show the max/min temperature for the day. It only shows the max/min temperature *since these readings have been last reset*.

The Maximum / Minimum Temperature reading can be accessed with the right-most button on the front of the unit.

> When the button is pressed, lines (2) and (3) display the Maximum Indoor Temperature and Maximum Outdoor Temperature, respectively.

> Press the button a second time to access the Minimum Indoor Temperature and Minimum Outdoor Temperature.

> Press the button a third time to revert the display for lines (2) and (3) to the Indoor Temperature and Outdoor Temperature, respectively.

> Press and Hold the button to reset both the Maximum and the Minimum Temperatures.

- Alarm
The alarm is a little soft and chimes for just a minute. The time of the alarm can be accessed with the left-most button.

- Backlight
The backlight is bright and makes the LCD display easy to read in the dark or in dim lighting. The backlight can be accessed with the button in the middle.
Read more ›
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25 of 25 people found the following review helpful By William R. Johnston on January 15, 2010
My future brother-in-law and his wife got this for us for Christmas. I thought it would be a good comparison to the wireless LaCrosse I've been using.

Specifications:
Indoor temp: 23 to 122 F / -5 to 50 C
Outdoor temp: -58 to 158 F / -50 to 70 C
10 Foot Cable for outdoor sensor
Temperature resolution: 0.2 F
Sampling cycle: 10 seconds
Power: 2 AAA batteries
Accuracy Range:
+/- 2F for 32 to 104 F
+/- 4F for -8 to 122 F
+/- 6F for -58 to 158 F
Weight (excluding batteries): 3.17 oz / 90 grams

The unit is also a clock / alarm, but I us it more for a thermometer. The buttons on the front change the mode (alarm/clock), backlit, and min/max temp. The unit beeps each time a button is pressed.

I tested the unit with the external sensor indoors, located right next to the display. I read 69.6 degrees as the indoor, and 70.3 as outdoors. I compared this to my meat thermometer (which hopefully is fairly accurate, but for $10, who knows), which showed 70.0. I think this is fairly accurate, and it's within the 2F accuracy range. It's also pretty comparable to the range I found on the LaCrosse unit I also have.

The LCD display is a bit light, and can be hard to read from some angles and lighting, but this is a common problem across many LCD displays I've seen. It's easiest to read when it's slightly below eye level.

The LED backlight consists of two diodes on the left side of the unit (NOT a full panel backlight like in the photo). Reading the unit at night can be difficult, and the viewing angle is even more shallow.

The unit can be desk mounted or hung on a wall. The back of the unit has a stand, mounting hole, and several buttons to adjust the clock / alarm / settings.
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