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A mercury-free, family-safe basal thermometer ideal for fertility charting.

1
$19.95
Overview
Q & A
Reviews

Accuracy and Safety - Mercury-free Glass Basal Thermometer

An innovation in preconception and fertility products, the Fairhaven Health Glass Basal Thermometer is a mercury-free and non-toxic alternative to mercury thermometers, that is designed specifically for Basal Body Temperature (BBT) charting.

Our glass basal thermometer is family- and earth-friendly, yet is certified for accuracy – critical in BBT charting. This safe, easy-to-use basal thermometer comes with its own magnifying lens built into a no-break carrying case.

This glass basal thermometer contains absolutely no mercury, using a safe, liquid alloy instead. Concerns about mercury have been featured prominently in the news, and many states are requiring that mercury-containing thermometers be recalled by manufacturers due to toxicity and related health hazards, particularly for pregnant and trying-to-conceive women.

FERTILITY CHARTS

To print out a fertility chart, click on one of the links below:

Fertility Chart (Fahrenheit)

Fertility Chart (Celsius)


Highlights

• Family- and Earth-friendly.

• Contains absolutely no mercury.

• Ultra accurate - certified to exceed ASTM standards.

• No-break, easy-read magnifying case.

• Includes fertility charts and detailed instructions on BBT charting.

• Cleans up with soap and water.


See Who's Talking About the Mercury-free Glass
Basal Thermometer

Read Customer Reviews

By Tara from Charleston, WV on January 9, 2012
My Dr. is telling me to take my bbt with a "special metabolic thermometer with a fehrenheit scale" is this thermometer a metabloic? Will this one work?
By Customer Service on January 10, 2012

Answer:
A metabolic thermometer is a basal thermometer. These thermometers are designed to take your resting temperature - so, your temperature should be taken first thing in the morning before eating or drinking.

By Rachel from Australia on January 11, 2012
Are the readings only in farenheit? I'm looking for a celcius reading...

By Customer Service on January 11, 2012

Answer:
Our thermometers are in Fahrenheit only.

By Cindy Petti from Chatham, MA on November 20, 2011
Directions on how to USE the thermometer on not included. I know it's for rectum use. The blue line is stuck at about 100 in the gray area. I tried to shake it down, but it doesn't budge. Is it broken?
By Customer Service on December 1, 2011

Answer:
Our Mercury-Free Glass Basal Thermometer is to be used orally.

You can email customer service for a copy of instructions and help with how to shake-down the thermometer. (info@fairhavenhealth.com)

Mercury-Free Glass Basal Thermometer
$19.95
4.5 Stars based on 20 Review(s)
Julie Haan
United States
4 Stars
I would recommend this item to a friend.

A real mess if it breaks
December 8, 2014
The thermometer worked really well and was easy to read. It should come with instructions on how to manage the substance when it does break as mine did. The little beads of stuff are hard to find and went everywhere. When I tried to grab hold of them or wipe them off the carpet it turned black. It was an absolute mess.

Abby
Pennsylvania
5 Stars
I would recommend this item to a friend.

Easy to Use- Best Customer Service
December 1, 2014
Even with the high price (compared to digital), with the amazing customer service and quality- this thermometer is definitely worth it. I would absolutely recommend this product and specifically from THIS company. Google promo codes for 20% off! Some people have mentioned the (light) blue line in the background making it more difficult to read- but just keep rotating the thermometer and you'll see the DARK BLUE temp line. As for shaking it down- don't do it in the bathroom! Take the other reviewers advice and do it over the bed. And although it is wider than the old style thermometers, I haven't had any issues holding it in my mouth while I snooze for 5 minutes- I do have to make sure I stay awake enough to keep my lips closed though.
Pros:
Accurate, reliable, easy to read, no batteries to replace or electronics to malfunction, and no exposure to plastics.
Cons:
Easy to break- especially if you don't realize the magnifying case is open on both ends when you put the thermometer in (without the pink case)- DON'T DO THAT! takes a few minutes to get up to temperature, needs to be shaken down.

Tracy E.
Meadow Vista, CA
4 Stars
I would recommend this item to a friend.

Charting Thermometer!
November 24, 2014
My husband and I have been using this thermometer regularly for almost a whole cycle now, and I am finally used to using a glass thermometer! It was by the far the cheapest one I found in my search for basal body thermometer, but that in no way has affected how we use it.
Pros:
Easy to use. Easy to clean. Pretty easy to read. Fit our budget.
Cons:
Shake really hard to get the blue line down below the numbers, but don't use that against the thermometer.

Amber
Sacramento, CA
5 Stars
I would recommend this item to a friend.

Mercury-Free Glass Basal Thermometer
November 11, 2014
This is my first ever glass basal thermometer. I am so enjoying the experience of not having my thermometer beeping at me in the morning. I use this as part of my Fertility Awareness Method practice. I'm nearly two months in and have found the thermometer to be accurate and easy to use. The customer service and order process with FairHaven Health has been amazing.
Pros:
Mercury-free, glass, holds the temp until I'm ready to record it, silent
Cons:
Why do all fertility marketed products have to be pink?

NillaTea
Maui, HI
5 Stars
I would recommend this item to a friend.

Great Thermometer for Basal Temp Charting
November 1, 2014
I use this thermometer for FAM charting. It gives me clear, accurate readings without the annoying 'beep, beep, beeps" of the digital version. Just remember to shake it down the night before!
Pros:
Quiet Easy to read Accurate

Dani
Arizona
5 Stars
I would recommend this item to a friend.

Easy and Accurate
October 21, 2014
Easy to use and accurate. It gives me peace of mind knowing it is not toxic. Fairhaven's customer service was excellent.

Becca
Massachusetts
5 Stars
I would recommend this item to a friend.

Best choice for BBT for FAM method
October 21, 2014
After doing research online I chose this style and this company. Best choice for reading basal body temps. Although a digital thermometer reads much faster (this one you must wait 5 minutes) I feel that this is more accurate than digital. I have also read that digital therm.s can get a false reading once in a while and i am not ok with a margin of error when tracking my fertility. It is not mercury based so it's safer than the old fever thermometers. Even though it's glass I don't worry about it breaking since it has a two piece case that comes with it. It takes using it a couple times to get used to its size (larger than fever therm.) But it is designed this way for a reading to the tenth of a degree. Some people in the reviews said they had a difficult time shaking down during reset. I think it might take some getting used to if you're not familiar with how you shake down a glass thermometer. I grew up with one in my house for fevers and so I have no trouble. If you aren't sure or you feel you might accidentally chuck it across the room: all you have to do is shake it down over your bed. That way if your grip slips it won't possibly break hitting the floor. Make sure your hands and the thermometer are totally dry when you shake it down to reset!
Pros:
Easy to read. Easy to clean. easy to use.

Jennifer
WV
5 Stars
I would recommend this item to a friend.

Love this thermometer!
August 18, 2014
I was worried after reading other reviews about how hard it is to shake this thermometer down. I had trouble the 1st time, but since then it's been so easy. I love this thermometer...I know longer have to spend money every month for a new battery for my digital thermometer. Some reviews also said this thermometer is difficult to read, but I've had no problems whatsoever.

Catherine
Tracy, CA
4 Stars
I would recommend this item to a friend.

Great basal thermometer without the beeps
July 17, 2014
This is a great basal thermometer. The graded lines are accurate to check your temperature from day to day. It is "old-school" and so doesn't beep continuously like all the newer electronic thermometers. It's easy to reset if any of is remember to "flick" with the wrist like when we were kids. The only drawback is that the diameter of the thermometer is a bit large and so when I pop it into my moth in the morning while half asleep it's a bit large.
Pros:
-Doesn't beep continuously -Graded to 0.1 deg Fahrenheit -Keeps temperature until you "flick" to reset
Cons:
-Diameter a bit large -Would like to have temperature range extended down to 96.5 deg Fahrenheit

Cassie
NC
5 Stars
I would recommend this item to a friend.

Great product
April 29, 2014
Great product for tracking basal body temp for fertility.

Becky
St. Paul, MN
5 Stars
I would recommend this item to a friend.

Works perfectly!
April 14, 2014
I grew up using traditional (mercury) glass thermometers. Shaking this new mercury-free thermometer down requires exactly the same technique. Hold firmly and shake down in a direction toward the floor, away from your body. No problem.

Amanda
Hamilton, Ontario
4 Stars
I would recommend this item to a friend.

Quality Product
March 2, 2014
Easy to use and easy to read. Found it hard to shake down so had to use a sock. Overall, I am very happy with it

Anna
Darien
5 Stars
I would recommend this item to a friend.

Great thermometer !!!
December 27, 2013
I use it for Natural Family planning. It's working great. The most accurate from all thermometers I've used before.

Elanor
Denver, CO
5 Stars
I would recommend this item to a friend.

Love it!
August 4, 2013
I purchased this product a few months ago and absolutely love it! It's very accurate, easy to use, and the case is perfect for traveling. I highly recommend this to anyone wanting to use this product as a means of tracking fertility or learning more about your own health.

Jenn
Tidewater, VA
1 Stars

If I could give it no stars, I would.
June 2, 2013
I tried two of these thermometers...TWO. They are nearly impossible to shake down and even more difficult to read, as the blue line is the same color as the background line. Fortunately, Fairhaven's customer service policy is generous. They sent me a replacement after the first, a digital thermometer after the second, and finally a refund when all three thermometers failed to work.
Merchant Response:
Hi Jenn: So sorry to hear of the repeated troubles w/the basal thermometer. Galinstan, which is the substance that's used instead of mercury in this thermometer, is a bit more temperamental than the mercury that many of us grew up with. In particular, it is temperature sensitive. As such, it should be washed with lukewarm water rather than hot water. When you use hot water, the galinstan can sort of lock into position for a period of time, which I believe is what happened to you. In any case, our apologies for the inconvenience here, and all the best to you!

happy customer
California
5 Stars
I would recommend this item to a friend.

Great thermometer, great service from Fairhaven
March 20, 2012
Due to possible PCOS, I read about basal temp monitoring and picked this thermometer: 1. It's mercury free. 2. It doesn't use batteries and is better for the environment. 3. I think digital gives less consistent measurements. This thermometer is easy to clean, no plastic slip covers needed (less waste!) and full-proof to use. To get the mercury down, I put the encased thermometer in an old sock, and twirl the sock. (Read this online, it works!) The only con is that it's a little wide and awkward to hold in my mouth at first. But now, it's comfortable. Lastly, thank you Fairhaven for rapid shipping and friendly, gracious customer service on the phone.

Cindy
Virginia
5 Stars
I would recommend this item to a friend.

Great!!
March 10, 2012
Great Product would recommend again!

Ashley Hartman
Albany, WI
5 Stars
I would recommend this item to a friend.

Lovely product, but easily breakable.
October 13, 2011
I used it to chart my BBT for practicing the Fertility Awareness Method of birth control. I love the glass thermometer much better than my electric one. Unfortunately, as I was shaking it down one evening it slipped out of my hands and shattered. They are a little expensive, so I haven't been able to buy another one.
Pros:
Accurate readings and more aesthetically pleasing than electric thermometers.
Cons:
Easily breakable.

Amber Dawn
San Francisco, CA
5 Stars
I would recommend this item to a friend.

Love this thermometer
September 3, 2011
I tried a bunch of different basal body thermometers when I was first charting a few years ago. I tried various digital ones, and was always a bit unsettled about it not knowing when the batteries started to die and when the readings became less accurate. This mercury-free battery-free thermometer takes out the guess work and lasts well for years. I have one at home and one for travel, and trust them fully. Glad they continue to be made! I refer all my natural fertility awareness friends to this exact thermometer.
Pros:
—accurate results in 5 minutes —good carrying travel case, very sturdy —no batteries, works forever —cute and simple
Cons:
—not as fast as a digital

Brooke Warner
5 Stars

these are awesome!
April 10, 2010
Good accurate measurements. You do have to shake down the mercury after each use, which isn't specified in the instructions. Old-fashioned reliability.




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