The offline-first toolkit for BAS field techs
BAU Suite puts your projects, controller diagnostics, terminal access, and documentation in one portable workspace — on site or in the office, with or without Wi-Fi.
19
Integrated tools
100%
Offline-capable
Free
To get started
AHU Level 3 — Block A
44OP-349942 · Updated today
What's inside
Every tool the job needs, built in
BAU Suite replaces the stack of spreadsheets, file shares, note apps, terminal emulators, and IP scanners techs juggle on a job — with one connected workspace. No tab-switching, no extra software.
Manage & document
Keep every project organized and every finding on record.
Projects
Contacts, tags, status, and a full activity history
Daily Reports
Structured field reports with issue tracking
Documents
Panel databases, diagrams, controller backups
Field Notes
Punch items and observations, categorized & searchable
Share & Export
Teams, Outlook, or PDF with audience presets
Plan & diagnose
The diagnostic kit for BAS commissioning and service.
IP Plan
IP addressing with VLAN, subnet & duplicate detection
Device List
BACnet instance, IP, MAC, firmware & location
Network Diagrams
Drag-and-drop topology maps with PNG / SVG export
Ping Tool
HTTP & ICMP testing with port scanning and history
Register Tool
Decode BACnet, Modbus & LonWorks values
PID Tuning
Ziegler-Nichols & Cohen-Coon with symptom diagnosis
Psychrometric
Moist-air properties for AHU commissioning
Trend Viewer
Overlay trend CSVs and detect stuck sensors
Access & program
Connect to controllers and program from the field.
Telnet HMI
Direct terminal access with session logging & ANSI
Web Interface
Controller web panels in embedded tabs
PPCL Editor
Write PPCL, or import .p2 panels to view programs, points & trends
Collaborate
Share projects and knowledge across the team.
Global Projects
Shared projects with access codes & role permissions
Knowledge Base
Technical guides with markdown, replies & search
Activity Tracking
Before/after diffs, timestamps & attribution
Built for the field
Designed around real site constraints
Offline-first
Everything lives on your device. Pin projects, then work with no Wi-Fi, VPN, or cell signal.
One workspace
Projects, files, IP plans, device lists, notes, and diagnostics — linked and searchable in one place.
Built-in diagnostics
Terminal, ping, register decoder, PID tuner, psychrometric, trends — no extra software to install.
Your data stays local
Device configs and project data stay on your machine by default. Cloud sync is opt-in, never forced.
Full network diagnostics
on Windows
The native desktop app adds true ICMP ping, VPN and internal subnet access, and a focused workspace without browser limitations.
Mac & Linux users: the full web app works in any modern browser.
Native ICMP ping
True reachability — not just HTTP
Full network access
VPN & internal subnets
Desktop terminal
Native performance
Signed & auto-updating
Trusted installer
Plans & pricing
Free to use.
Pro to sync.
All local features are free, forever. Upgrade to Pro for cloud sync and backup, or Team for real-time collaboration.
Free
All local features, forever
$0
Pro
Sync across devices
$8/mo
or $79/yr — save 18%
30-day free trial on monthly
Team
Collaborate in real time
$15/mo
or $149/yr — save 17%
30-day free trial on monthly
Cancel anytime — your local data stays on your device.
Prefer to just support the project? — no account needed.
Take a look around
Open BAU Suite and start with the local tools — they're free, no credit card required. Add cloud sync or team collaboration later, only if you need them.