The FG20P Backyard Compost Thermometer is made in China. We do offer US made thermometers, search for Reotemp Heavy Duty Compost Thermometer. -Peter Reotemp

Does it measure the temperature at the tip of the probe, or must the whole 20" probe be the same temperature to get a sensible reading?

The sensitive portion is the last 2 inches at the tip of the probe. So you don't have to necessarily put the entire stem into the compost pile.

Yes! The dial is hermetically sealed (waterproof).

Will this work to tell the temp in hay bales?

Yes. that is what I use them for and they work really well. I locate the bales that are the hottest and leave the REOTEMP in the bale and look at it daily. My last hay was not as dry as I would have liked and I put the REOTEMP in when it read 120F three days after baling. It went to 140F and then came back to 120 when I removed it yesterday.

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Backyard Compost Thermometer - 20" Stem with PDF Compost Guide (F)

Product ID: 733837431

Details

Age Range (Description)
Adult
Brand
REOTEMP
Color
As shown
Display Type
Analog
Included Components
Thermometer
Model Name
FG20P

📊3 compost zones for instant activity insight

📘Bonus PDF guide to master composting

🌡️20" durable stem for deep, precise readings

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23212 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Turn your compost into black gold with precision and ease!

INSTANT EXPERTISE - Includes a digital PDF compost guide to turn beginners into backyard soil wizards.
COMPOST LIKE A PRO - Three clear temperature zones (stable, active, hot) let you monitor microbial activity at a glance.
PRECISION THAT LASTS - Thick 1/4" stem ensures accurate temps deep in your compost pile—no guesswork.
TRUSTED BY THOUSANDS - Over 3,200 five-star reviews prove this is the go-to tool for serious composters.
BUILT FOR THE ELEMENTS - Sealed design prevents fogging—leave it in your pile overnight without worry.

The REOTEMP Backyard Compost Thermometer features a rugged 20-inch, 1/4" diameter stem for deep, accurate temperature readings up to 200°F. Its sealed design prevents fogging, allowing continuous monitoring even overnight. The analog dial displays three temperature zones to track compost activity, and it comes with a comprehensive PDF guide to optimize your composting process. With over 3,200 positive reviews, it’s a trusted tool for gardeners aiming to accelerate decomposition and enrich soil naturally.

Specifications

ASIN	B002P5RGMI
Additional Features	High Accuracy
Age Range Description	Adult
Brand Name	REOTEMP
Color	As shown
Customer Reviews	4.7 4.7 out of 5 stars (3,266)
Display Type	Analog
Immersion Depth	20 インチ
Included Components	Thermometer, PDF digital compost guide, basic composting procedures
Indoor Outdoor Usage	Outdoor
Inner Material	Glass
Item Length	20 Inches
Item Weight	113 g
Manufacturer	REOTEMP
Model	FG20P-amazon
Model Name	FG20P
Outer Material	Plastic
Part Number	FG20P
Product Care Instructions	Wipe Clean
Response Time	500 Milliseconds
Reusability	Reusable
UPC	799331296458 853850002003 767615649016 767615279510
Unit Count	1.0 Count
Upper Temperature Range	200 Degrees Fahrenheit

Reviews

D**N

The product is doing what I purchased it for

14.12.2019

R**H

Good product. Long term used and doing fine

5.05.2025

J**N

Good find, works very well

26.11.2025

A**R

Works perfectly! Reads the temp super quickly, very good quality, holds up really well to getting blasted with the hose 🤣🤪 temp seems very accurate as well. The length is perfect for basically any backyard pile. Great value for the money. Would purchase again.

2.10.2025

F**A

Llego en excelentes condiciones, muy práctico y funcional para composta casera. Excelente producto

9.05.2020

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23212 Ft

Duties & taxes included

In stock

Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Hungary.

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TrustScore 4.5 | 7,300+ reviews

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