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Description
GF77 Gas Find IR with 25° LR, 6° LR & 25° HR Lens, 320 x 240 pixels, 25 mK/40 mkSpecifications Display Size 4" Display Type Built in Resolution 320 x 240 pixels Thermal Sensitivity 25 mK 40 mk Gas Sensitivity (NECL) LR lens: CH4: <100 ppm m, N2O: <75 ppm m, C3H8: <400 ppm m, SO2: <30 ppm m, R 134a: <20 ppm m, R 152a: <100 ppm m HR lens: SF6: <1 ppm m, C2H4: <20 ppm m, NH3: <20 ppm m, R 12: <4 ppm m (T = 10C, Distance = 1 m) Detector Pitch 25 m Accuracy 100 C 3C (5. 4F), >100C 3% for Ambient Temperature 15 to 35C (59 to 95F)
Specifications
Display Size
4"
Display Type
Built-in
Resolution
320 x 240 pixels
Thermal Sensitivity
25 mK/40 mk
Gas Sensitivity (NECL)
LR lens: CH4: <100 ppm × m, N2O: <75 ppm × m, C3H8: <400 ppm × m, SO2: <30 ppm × m, R-134a: <20 ppm × m, R-152a: <100 ppm × m HR lens: SF6: <1 ppm × m, C2H4: <20 ppm × m, NH3: <20 ppm × m, R-12: <4 ppm × m (ΔT = 10°C, Distance = 1 m)
Detector Pitch
25 µm
Accuracy
≤100 °C ±3°C (±5.4°F), >100°C ±3% for Ambient Temperature 15 to 35°C (59 to 95°F)
Spectral Range
LR: 7-8.5 µm, HR: 9.5-12 µm
Field Of View (FOV)
25° Lens: 25° × 19°, 6° Lens: 6.4° × 4.9°
Focal Length
25° Lens: 18 mm (0.71 in.), 6° Lens: 74 mm (2.9 in.)
Image Frequency
30 Hz
Min. Focus Distance
25° Lens: 0.3 m (0.98 ft), 6° Lens: 5 m (16.4 ft)
Battery Operating Time
>4 hours at 25°C (68°F) with Typical Use
Country Of Origin
Sweden
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.0 ★★★★★
Based on 1487 reviews
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Product Reviews
★★★★★ 4
Great book, but no new info for a huge Homer fan...
Format: Hardcover
Neat book, but anyone who is a huge Homer fan, like my husband (who the book was for) will not learn anything new - so I am told. Although there is a ton of great info in there about Homer and his friends/everyday life, it's a huge disappointment to hear that he already knows everything in the book. I guess that's a super-fan for you!
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Reviewed in the United States on January 22, 2017
★★★★★ 5
thanks
Format: Hardcover
thank you for your fast delivery I am very happy with the book!!! I love the Simpsons and Homer is such a great personality I have watched the Simpsons from the start!!! and will never stop!!
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Reviewed in the United States on September 24, 2013
★★★★★ 5
To funny
Format: Hardcover
If you’ve seen the show, then the book is just as funny. It takes all of Homer’s “advice” and puts it into a cute book. I have it on my shelf next to my Duff energy drink
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Reviewed in the United States on January 24, 2013
★★★★★ 5
Great for a Ralph Wiggum fan!
Format: Hardcover
Bought this for a friend for his bday and he loved it. Huge Simpson's fan,favorite character is Ralph, loved how the book was filled with random facts and weird thoughts.
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Reviewed in the United States on January 28, 2020
★★★★★ 5
Funny and unexpected
Format: Hardcover
I bought this book for my girlfriend who is a big Ralph Wiggum fan. When it arrived, I was shocked to see what a thorough exploration of the character it was. I'm not saying it's all canon in terms of the show, as i saw some complaints that there was stuff in this book that wouldn't make sense to the Ralph character (such as his love for Lisa) due to them "breaking up" in a past episode, but come on, that's a hogwash complaint. The whole point of this book is to entertain, and it does so in spades, so it comes highly recommended. And this is coming from a huge 'The Simpsons' fan himself.
Oh, and by the way, my girlfriend loved it, too.
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Reviewed in the United States on January 14, 2014