Know what's happening on your BAS network.
BAS Probe gives BACnet and Modbus technicians real-time visibility into trunk health, device activity, and every point on the wire — browser-based, from a phone or tablet, with nothing to install.
What it does today
A complete field diagnostic toolkit — not a simple status indicator.
Everything below is shipping in current firmware — verified against real commercial controllers in the field, not a roadmap promise.
Automatic device discovery
Finds and identifies every device on the trunk — vendor, model, firmware, and instance number — with one tap.
Full point reads
Reads names, values, units, status, and access level across all standard BACnet object types, including Trend Logs.
Routed network traversal
Follows routers across multiple connected BACnet networks instead of stopping at the local trunk.
Safe test writes
Priority-16, auto-releasing commandable writes for field testing — bounded so a forgotten override can't linger.
Modbus RTU support
Reads Modbus RTU devices on the same RS-485 connection, alongside BACnet MS/TP.
Equipment graphics
Live data bound to building > floor > equipment graphics — a customer-ready view, not a raw point list.
Network health scoring
CRC errors, sync losses, token activity, and bus traffic rolled into one at-a-glance health score.
CSV export & local dashboard
Join the probe's Wi-Fi from any phone, tablet, or laptop — no app to install, no cloud account required.
See it in action
A two-minute walkthrough of the dashboard
Scanning a trunk, reading points, and building an equipment graphic — recorded directly from the probe's own web interface.
Technical documentation
Specs and the full reference manual
Everything a technician or an evaluator needs to understand the hardware, the protocol implementation, and day-to-day use.
Product Cutsheet
One-page overview: features, specifications, and typical field workflow.
Download cutsheet →User Guide & Reference Manual
Full setup, dashboard tour, scanning, building view, point access, network health, and troubleshooting reference.
Download user guide →Roadmap
Now, next, and future
BAS Probe already covers discovery, full point access, and safe writes. Here's what's shipped and what we're building toward.
Now · shipping
A complete field diagnostic tool
- Real-time BACnet MS/TP & Modbus RTU traffic, device activity, and health scoring
- Automatic multi-vendor device discovery and full point reads
- Routed-network traversal across multiple connected BACnet networks
- Equipment graphics with live data binding for a customer-ready view
- Safety-bounded write-back for field testing
Next · in development
Smarter, with less manual setup
- Automatic point-role tagging — telling a sensor from its setpoint without manual labeling
- Automatic safe-range inference for test writes, instead of fixed per-point thresholds
- Advanced diagnostics: fault localization, token-path analysis, intermittent-device detection
- Historical diagnostics: online/offline history, error trends, and response times over time
Future · vision
One dashboard, every vendor
- Automatic service reports contractors can hand building owners
- Cloud / remote monitoring across multiple buildings without a laptop on site
- A single vendor-neutral dashboard replacing per-manufacturer proprietary tools
The throughline: every near-term feature is a building block toward one vendor-neutral dashboard that lets a building owner safely monitor and test equipment from any manufacturer, in one place.
Ready for early access?
We're inviting a small group of BAS technicians to run BAS Probe in the field and help shape what gets built next.