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Description
Kestrel RH Calibration Salt/Magnesium Refill KitKestrel RH Calibration Salt Magnesium Refill Kit Replacement salt for Kestrel RH (Relative Humidity) Field Calibration Kit. The Kestrel replacement salt kit comes with one (50 gram) container of NaCl (Sodium Chloride 75. 3%) and one (50 gram) container of MgCl (Magnesium Chloride 32. 8%). Replacement salt kits should only be used if you have the Kestrel Meter Calibration Kit. Distilled water is recommended to be used when recalibrating. For use with:
Kestrel RH Calibration Salt/Magnesium Refill Kit
Replacement salt for Kestrel RH (Relative Humidity) Field Calibration Kit.
- The Kestrel replacement salt kit comes with one (50 gram) container of NaCl (Sodium Chloride 75.3%) and one (50 gram) container of MgCl (Magnesium Chloride 32.8%).
- Replacement salt kits should only be used if you have the Kestrel Meter Calibration Kit.
- Distilled water is recommended to be used when recalibrating.
- For use with: Kestrel 5000, Kestrel 4500, Kestrel 4300, Kestrel 4200, Kestrel 4100, Kestrel 4000, Kestrel 3500, and Kestrel 3000 (Both the older 2 button and 4 button version)
- NOTE: The replacement salts are sourced in Australia and have a larger grain size compared to the salts supplied in the Calibration Kit.
- TIP: We recommend using boiling distilled water when mixing it with the calibration replacement salts, this process allows the water to be absorbed more easily by the salts, simplifying the process of achieving the slurry consistency required for the calibration process.
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
4.9 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Amazing stuff!!
Love love love this stuff! You do have to spread it out well to not go right through it but it doesn’t take more than a thin layer to protect you all day!!
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Reviewed in the United States on October 15, 2025
★★★★★ 4
amazing product, a little too pricey
it worked amazing while we were trying to swim in the ocean and snorkel in the ocean. The only downfall I have of this is the price is so much for such a little amount.
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Reviewed in the United States on July 15, 2025
★★★★★ 5
Great clean sunscreen
Great sunscreen, made of minerals instead of chemicals, holds nice in water when surfacing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 6, 2025
★★★★★ 5
My go to brand
My go to brand. Other brands I have to reapply constantly and still have sunburn. I love this brand and the stick is even better for applying sunscreen. Very reliable without any mess!
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Reviewed in the United States on February 3, 2025
★★★★★ 1
Not fur Surfing or other Water Sports
I got this in a swag bag from a surfing contest. The stick is very dry...that's the only way I can explain how it feels. It certainly doesn't glide on like other face sticks. After one wave and ducking my face in the water, the product smeared off and ran into my eyes. My vision got blurry from that, and it was really hard to see the waves coming in. I won't be using this product ever again. I also looked at the EWG website, and this product was given a 6. For those new to EWG, that's not a good rating. You want like a 1 or 2.
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Reviewed in the United States on January 10, 2026
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