AMS Hygrometer for Bambu Lab | Dual-Unit & 2-Shape Options

This high-precision digital hygrometer is engineered specifically for 3D printing environments, designed to outperform Bambu Lab’s original horizontal version. With Celsius/Fahrenheit unit options (a key upgrade) and two shape choices (vertical or round), it fits seamlessly into your Bambu Lab AMS, filament dry box, or print chamber. Monitor temperature and humidity reliably to keep filaments moisture-free and printing conditions stable—delivering consistent, high-quality results every time.

Key Features

°C / °F Unit Options (Exclusive Upgrade)

Unlike Bambu Lab’s stock horizontal hygrometer, you can choose between Celsius (°C) or Fahrenheit (°F) to match your regional preferences and workflow.

2 Shapes: Vertical & Round

Select vertical (slim profile) or round embedded design to fit different mounting brackets, MODs, or space requirements.

Bambu Lab Original-Sized Compatibility

Both version shares identical dimensions with Bambu’s original hygrometer—fits all existing MODs, desiccant boxes, and mounts without modification.

High-Precision Monitoring

Humidity accuracy: ±5% RH; Temperature accuracy: ±1°C (±2°F) at room temperature; Operating range: -50°C~70°C (-58°F~158°F).

Ready-to-Use Out of the Box

Powered by 2 × AG13 (LR44) button batteries (included) with a clear, large LCD display for instant readings.

Technical Specifications

Vertical Version

Specification	Details
Dimensions	48 × 28.6 × 17 mm (1.89 × 1.13 × 0.67 in)
Weight	25 g (with batteries)
LCD Screen Size	35.7 × 16.8 mm (1.41 × 0.66 in)

Round Embedded Version 

Specification	Details
Diameter (D)	45 mm (1.77 in)
Thickness (H)	14 mm (0.55 in)
Weight	25 g (with batteries)
LCD Screen Size	35.7 × 16.8 mm (1.41 × 0.66 in)

Common Specifications (Both Versions)

• Humidity Range: 10% ~ 99% RH
• Resolution: 1% RH, 1°C / 1°F
• Sampling Rate: Updates every 10 seconds
• Power Supply: 2 × AG13 / LR44 button batteries (included)

Ideal Use Cases

• Bambu Lab AMS Storage: Protect PLA, ABS, and specialty filaments from moisture absorption and print defects. Free STL mounts available on MakerWorld: SPILLPROOF AMS Desiccant Box - RECTANGLE Hygrometer.
• 3D Print Chambers: Track environmental conditions to optimize material performance and surface finish.
• Storage & Workshop Spaces: Versatile for any area where stable humidity/temperature impacts material quality and printing success.

What’s Included

• 1 × AMS Hygrometer (choose: Vertical/Round + °C/°F version)
• 2 × AG13 / LR44 button batteries (pre-installed)

Installation & Use

1. Mount using double-sided tape or a 3D-printed bracket (compatible with Bambu Lab original mounts).
2. Place in a well-ventilated area for accurate readings.
3. Start monitoring immediately with your selected shape and temperature unit.