Lv Book: Leveling Field Book

Lv Book replaces the paper level book for differential leveling on construction and civil sites. Enter backsights and foresights; Lv Book reduces the levels, checks the arithmetic and gives you a clean report to submit — fully offline. AUTOMATIC REDUCTION • Height of instrument (HI) or Rise & Fall method: levels are reduced as you type BS and FS • Turning points (TP) are detected automatically; mark one manually when needed • Intermediate sights handled correctly in the arithmetic check BUILT-IN CHECKS • Arithmetic check: ΣBS − ΣFS = (ΣRise − ΣFall) = Final RL − Start RL • Real misclosure against your closing BM (loop, another BM or a known RL) • Tolerance you choose: fixed or c·√n, with a clear "Within tolerance" / "Check required" result • Validation before export: first BS, last FS, TP complete, empty rows, arithmetic check, tolerance SUBMISSION-READY EXPORT (FREE) • Standard BS | IS | FS level book PDF with company name, surveyor, check box and signature fields • Hand-drawn signature, watermark, document templates and file-naming rules • CSV export that opens cleanly in Excel, and CSV import to restore or move records BENCHMARKS (BM / TBM) • Register benchmarks with status (Usable / Possibly damaged / Out of service) • Re-check reminders based on the last verified date • Pro: photo and GPS coordinates for each benchmark BUILT FOR THE FIELD • Works offline, no account or login • Spreadsheet-style entry with large cells for gloves and sunlight • Metres or feet, autosave, light and dark mode • Project → level book → benchmark organisation, search and quick reuse of surveyor/instrument/weather TRY IT IN SECONDS Open the sample project from the first screen to see HI/RL reduction and the arithmetic check on a real leveling run. LV BOOK PRO — ONE-TIME PURCHASE (NOT A SUBSCRIPTION) • Remove all ads • Benchmark photos and coordinates • Bulk export of many level books at once, with a submission package and summary CSV All calculations, checks, single PDF/CSV export, CSV import and document settings are free. Your data stays on your device. Back it up any time as a JSON file.