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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 2305 reviews
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Product Reviews
★★★★★ 5
Impressive
Size: 3 Pairs - Gray, Green, Pink
These socks are so cool and I have used them every night for a week and can see a difference. I am using them with the gold bond heel lotion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
★★★★★ 5
Very comfortable
Size: 3 Pairs - Gray, Green, Pink
This Heel crack socks are a practical and effective solution for managing dry, cracked heels. They offer a combination of comfort, hydration, and support that many users find beneficial. Although they might not be a miracle cure for everyone, their ease of use and noticeable results make them a worthwhile investment for those looking to improve their foot health. If you’re dealing with persistent heel dryness or cracks, giving these socks a try could be a step towards smoother, more comfortable feet.
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Reviewed in the United States on August 21, 2024
★★★★★ 3
Seem to help heal, but doesn't reach the balls of my feet
Size: 3 Pairs - Gray, Green, Pink
Only can wear when I am sitting down because they're to slippery to walk in
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Reviewed in the United States on April 15, 2026
★★★★★ 5
love these for soft feet!!
Size: 3 Pairs - Gray, Green, Pink
these are great. My feet are soft already! What I like best is my feet. Don't get hot in them because the heels and toes are exposed.
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Reviewed in the United States on January 3, 2026
★★★★★ 5
Heel saver
Size: 3 Pairs - Gray, Green, Pink
These little things are great, super comfy and I saw the difference in my feet after one use
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Reviewed in the United States on January 8, 2026