
Calculated Industries 4065 Construction Master Pro Advanced Construction Math Calculator
80 checks since Aug 5 · $80.23–$115.77
Price as of Sep 15, 2026, 3:48 p.m. EDT. Prices and availability change.
Pipe Trades functions: Right-Angles, Offsets and Complex Rolling Offsets, Fitting Angles, Bends, Angle/Slope Built-In-Pipe data with 7 different materials: Steel, Stainless Steel, Brass, Aluminum, Cast Iron, Plastic and Copper Flow Rates, Velocity Force, Volumes, Liquid conversions, Temperature conversions, Paperless tape, Material Costing
17% below Dipp's typical recorded price What does “typical” mean?
At the September 15 check, the price was $103.66 — the lowest Dipp has recorded across 96 checks since July 24.
Lowest seen · 17% below typical · Checked 2026-09-15
Price as of Sep 15, 2026, 1:48 p.m. EDT. Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.ca at the time of purchase will apply to the purchase of this product. As an Amazon Associate I earn from qualifying purchases.Prices and availability change.
This is Dipp's observed history, not every price ever offered on Amazon.ca.
The latest observations Dipp has stored for this product. These are periodic checks, not a record of every price Amazon displayed.
| Checked | Price |
|---|---|
| Sep 15, 2026, 8:48 a.m. | $103.66 |
| Sep 15, 2026, 3:48 a.m. | $139.32 |
| Sep 14, 2026, 1:48 p.m. | $139.32 |
| Sep 14, 2026, 2:18 a.m. | $138.95 |
| Sep 13, 2026, 8:48 p.m. | $138.74 |
| Sep 13, 2026, 3:48 a.m. | $138.95 |
| Sep 12, 2026, 2:48 p.m. | $138.95 |
| Sep 12, 2026, 2:47 a.m. | $138.95 |
| Sep 11, 2026, 11:47 a.m. | $138.95 |
| Sep 11, 2026, 12:47 a.m. | $139.03 |
| Sep 10, 2026, 7:47 a.m. | $139.03 |
| Sep 9, 2026, 3:47 p.m. | $139.03 |
Nearest prices in this category, so today’s number has something to sit against.

80 checks since Aug 5 · $80.23–$115.77
Price as of Sep 15, 2026, 3:48 p.m. EDT. Prices and availability change.

75 checks since Aug 4 · $75.75–$183.99
Price as of Sep 15, 2026, 4:47 p.m. EDT. Prices and availability change.

15 checks since Sep 6 · $59.99–$104.99
Price as of Sep 15, 2026, 2:48 p.m. EDT. Prices and availability change.

165 checks since Jul 24 · $91.18–$124.53
Price as of Sep 15, 2026, 5:47 p.m. EDT. Prices and availability change.

97 checks since Jul 25 · $81.77–$139.99
Price as of Sep 15, 2026, 2:47 p.m. EDT. Prices and availability change.

88 checks since Jul 25 · $8.00–$11.49
Price as of Sep 15, 2026, 2:47 p.m. EDT. Prices and availability change.
The wider Electronics catalogue on Amazon.ca, each product with its own recorded price history.