One offline-first workspace for BAS technicians and controls engineers. Projects, diagnostics, documentation, and terminal access — on site or in the office, with or without Wi-Fi.
19+
Integrated tools
100%
Offline-capable
Free
To get started
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Workflow
A connected workflow built around the real rhythm of BAS commissioning, service, and troubleshooting.
Pin any project before heading to site. All files, device lists, IP plans, and notes are available without Wi-Fi or cellular.
Find every controller, verify IP addresses and BACnet instances, check VLAN assignments, and detect duplicates automatically.
Open web panels, telnet into firmware, or decode register values — all without switching to a separate tool.
Tune PID loops, calculate psychrometric conditions, map network topology, and decode Modbus registers on the spot.
Attach terminal logs, screenshots, and field notes to the project. Write structured daily reports with full issue tracking.
Send a formatted PDF report, push to Teams, or email via Outlook — all directly from inside the app.
Ecosystem
Purpose-built utilities for building automation fieldwork. No extra software, no tab-switching.
Keep every project organized and every finding documented.
All your BAS project data in one place — contacts, tags, status, and a full activity history
Structured field reports with issue tracking and one-click Teams / Outlook / PDF export
Upload panel databases, wiring diagrams, and controller backups — attached directly to the project
Capture punch items, fixes, and observations on the fly — categorized and searchable across projects
Send to Teams, Outlook, or PDF with audience presets — no reformatting required
The full diagnostic toolkit for BAS commissioning and service.
Never lose track of a device. Full IP addressing with VLAN, subnet, and duplicate detection
Track every controller — BACnet instance, IP, MAC, firmware version, and physical location
Build topology maps in minutes, not hours. Drag-and-drop with PNG / SVG export for submittals
Know instantly which devices are reachable. HTTP and ICMP testing with port scanning and history
Decode any BACnet, Modbus, or LonWorks value — hex, IEEE 754, byte order, and addressing
Stop guessing on loop parameters. Ziegler-Nichols and Cohen-Coon calculators with symptom diagnosis
Calculate moist air properties for AHU commissioning — mixed air, coil loads, and comfort zones
Upload BAS trend CSVs from any platform, overlay multi-series data, detect stuck sensors and anomalies, and export clean reports
Connect directly to controllers and program from the field.
Direct terminal access to BAS controllers — session logging, multi-profile management, and ANSI rendering
Launch and manage controller web panels in embedded tabs — no browser switching required
Write, edit, and validate Carrier PPCL logic with syntax highlighting and project file management
Share projects and knowledge across your team in real time.
Multi-user shared projects with access codes, role-based permissions, and real-time activity tracking
A shared library of technical guides with markdown editing, threaded replies, and full-text search
Every change logged with before/after diffs, timestamps, and creator attribution
Platform
BAU Suite centralizes the project data, diagnostic tools, and documentation workflows that field engineers use every day.
Projects, files, IP plans, device lists, notes, and diagnostics — all linked and searchable. Stop switching apps mid-job.
Everything stored locally. Pin projects before heading to site. Works without Wi-Fi, VPN, or cellular — no excuses.
Terminal, web panel viewer, ping, register decoder, PID tuner, psychrometric calculator — no extra software needed.
Structured daily reports, versioned file uploads, and one-click export to Teams, Outlook, and PDF with full audit trails.
Global Projects with access codes, role-based permissions, real-time activity tracking, and a shared knowledge base.
Why it matters
Designed around the real constraints of BAS commissioning, service, and troubleshooting.
Stop switching between spreadsheets, file shares, note apps, terminal emulators, and IP scanners.
All data stored locally. Pin projects before heading to the job site. No Wi-Fi, VPN, or hotspot required.
Quick upload from any page, global Cmd+K search, keyboard shortcuts, and fast navigation across all project data.
Local-first means device configs and project data stay private by default. Cloud sync is opt-in, never forced.
Download the native desktop app for true ICMP ping, VPN and internal subnet access, and a focused workspace without browser limitations.
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
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
Cloud Sync
$8/mo
30-day free trial
Team
Collaborate
$15/mo
30-day free trial
Create a free account. All local features are free forever — upgrade when you need cloud sync or team collaboration.