Achieve lightning-fast bed leveling and unmatched accuracy with the Beacon Probe Eddy Current Surface Scanner (RevH). Designed specifically for Klipper- and Kalico-powered 3D printers, this non-contact z-probe utilizes high-frequency eddy currents to measure bed displacement without requiring Z-axis movement. By enabling rapid Scan Mode meshing, the Beacon probe maps dense bed topologies in just a few seconds while drastically reducing print preparation time.
The RevH iteration features low thermal drift coupled with active temperature compensation, alongside an upgraded high-temperature onboard accelerometer rated for measurement up to 100°C. Fully assembled and equipped with a 6ft custom USB cable, the Beacon Probe is available in Normal (ideal for Annex or StealthBurner toolheads) and Low Profile (optimized for VzBot, RatRig, or K3 Frostbite setups) form factors.
Key Features
Non-Contact Eddy Current Sensing: Provides native displacement measurements without touching the bed surface or requiring Z-probing motion.
Rapid Scan Mode Meshing: Generates ultra-dense bed mesh grids in seconds for flawless first-layer adhesion.
High-Temperature Accelerometer (RevH): Onboard accelerometer supports resonance testing (input shaper) up to 100°C measurement and 115°C standby temperatures.
Active Thermal Drift Compensation: Low-drift hardware design combined with active software algorithms ensures consistent z-offset accuracy across temperature swings.
Two Form Factor Options: Choose between Normal and Low Profile PCB layouts to best match your toolhead clearance requirements.
Technical Specifications
Parameter
Requirement / Specification
Firmware Compatibility
Klipper, Kalico
Interface
USB to Single Board Computer (SBC)
Cable Included
6ft Custom USB Cable
Bed Requirements
Conductive metal bed plate (≥ 400µm thick); e.g., Bare Steel, PEI-coated spring steel, Wham Bam
Accelerometer Max Temp
100°C operating / 115°C standby
Toolhead Compatibility
Normal (Annex, StealthBurner) | Low Profile (VzBot, RatRig, K3 Frostbite)
Compatibility & Usage Notes
Conductive Bed Required: Beacon requires a conductive surface or substrate (minimum 400µm thick) to function. Bed stacks with oversized fixed magnets are not recommended and may cause interference.
SBC Warning: BTT Pi and BTT Manta single-board computers can cause electrical damage to the Beacon probe. If using these boards, you must use an inline USB hub or connect through a different SBC. Direct connection to BTT Pi/Manta will void the 30-day standard warranty.
