GRUS GRS104M – Precision Hygrometer & Thermometer
Museum-Grade • Hand-Calibrated in Japan • Battery-Free Analog Design
🇯🇵 Japan Made🏛 Museum Grade🌡 0–100% RH / −30–50°C🔋 No Battery
Key Highlights
- World-Class Precision — trusted by art museums and galleries worldwide.
- Hand-adjusted in Japan for accurate temperature and humidity readings.
- Battery-free mechanical design ideal for long-term installations.
- Clear dual dial display with high visibility blue and yellow scale.
- Compact and lightweight — perfect for cases, archives, and displays.
Specifications
| Model | GRS104M (Museum Use) |
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| JAN | 4582114308600 |
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| Size | Approx. 28 × 48 × 14 mm |
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| Weight | Approx. 15 g |
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| Material | ABS body / Acrylic surface |
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| Humidity Range | 0–100 %RH (2% resolution) |
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| Temperature Range | −30°C to +50°C (2°C resolution) |
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| Power | Not required (analog mechanism) |
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| Origin | Japan |
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| Recommended Use | Art museums, archives, galleries, display cases |
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Notes
- Allow a few hours for accurate stabilization after installation.
- Avoid direct sunlight or enclosed humid environments for best precision.
Shipping & Authenticity
- Ships directly from Japan with tracking and secure packaging.
- 100% authentic GRUS Japan precision instrument — brand new and inspected.
Keywords: GRUS GRS104M, Japan Made Hygrometer, Museum Thermometer, Precision Temperature Humidity Gauge, Analog Hygrometer, Art Gallery Display.