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🧪 Calibrate like a pro—because precision is the new power.
The Boveda One Step Hygrometer Calibration Kit offers a patented, saltwater-based solution to precisely calibrate hygrometers at 75% relative humidity. Designed for mess-free, maintenance-free use, it features an airtight high-density bag that delivers professional-grade accuracy within 24 hours. Lasting up to one year and compatible with both digital and analog devices, this kit ensures your humidity readings are reliable, protecting valuable cigars, lab instruments, and sensitive environments.






| ASIN | B000A3UBLA |
| Brand Name | Boveda |
| Color | Brown |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,036) |
| EU Spare Part Availability Duration | 1 Years |
| Global Trade Identification Number | 00850661003311 |
| Included Components | 1 Calibration Kit & 1 Humidity Control Packet |
| Item Weight | 0.03 Pounds |
| Material | Plastic |
| Model Number | CAL75-SM |
| Operation Mode | Manual |
| Other Special Features of the Product | Single-phase calibration kit, salt test, maintenance-free 75% moisture |
| Part Number | CAL75-SM |
| Smart Home Compatibility | Not Smart Home Compatible |
| UPC | 850661003311 |
| Unit Count | 1.0 Count |
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