PTR Whiteboard is built for calibration and instrumentation trainers: drop 3D pictures of real instruments and sources onto the board and draw the connections exactly as they are made on the bench — then present it live, annotate PDFs, run built-in training simulators and export everything.
A gallery of 3D instrument and source pictures (multimeters, calibrators, pressure sources and more) you can place, resize, rotate and wire together — so trainees see the connection scheme exactly the way it looks on a real calibration bench, before they ever touch one.
Built alongside our laboratory-compliance products — the whiteboard understands calibration, data integrity and metrology training out of the box.
Pen, highlighter, eraser, lines, arrows, rectangles, ellipses, text boxes, sticky notes, tables, image paste and video attach — with select, move, resize, rotate, flip, layer and duplicate.
A built-in DKD-R 6-1 / DMM calibration simulator to walk trainees through calibration points and readings interactively — no physical bench required.
Purpose-built exercises for good documentation practice and data-integrity training — including locked raw-data items trainees must handle correctly.
A simple GUM-based uncertainty training mode for teaching budgets and contributions without spreadsheet pain.
Import any PDF as annotatable pages — mark up SOPs, certificates and datasheets right on the board, then re-export.
One click hides every toolbar for a clean screen-share — ideal for projecting in a classroom or sharing into any meeting.
Multi-page boards, a ruled-diary paper look, undo/redo everywhere and autosave to your browser — plus Save/Load as a portable file.
Export boards to PNG or PDF for handouts and records, or save to Google Drive directly from the board.
Everything runs locally in the browser — drawings and attendance data never leave the machine unless you export them.
Run remote training like a classroom: the whiteboard plus automatic attendance, right inside the call.
Reads participants from the Meet page — name, first seen, last seen, minutes present — and exports a clean CSV for your training records.
One click opens the whiteboard in its own window, ready to screen-share into the meeting with Present now → A window.
Add anyone the page missed, watch live presence dots, and download the attendance CSV at any moment during the call.
The extension runs entirely in your browser — no servers, no accounts, no data sent anywhere.
Unzip → chrome://extensions → Developer mode → Load unpacked. Works in Chrome and Edge.
Create your account with your mobile number and the whiteboard is free for 24 hours from the moment you first open it — one trial per mobile number. When the trial ends, contact us to purchase full access; your account and saved boards are kept.
🖊 Start your free 24-hour trial