The PlumbRod™ uses an adjustable dial on the bottom bracket to quickly align your plumb reference — no shims, no guesswork. Installs in minutes. Every surveyor's office should have one on the wall.
The Problem
Survey rods take a beating in the field. Vibration, temperature swings, and impact can knock plumb vials out of true calibration. The PlumbRod™ Calibration Jig makes regular rod checks fast, simple, and affordable.
Simple Setup
Mount the upper bracket approximately 2.3 meters above the floor using the included washers and screws. A standard drill and level are all you need.
Suspend the plumb bob and mount the lower bracket beneath it. Rotate the calibration dial until the target point is precisely under the plumb bob tip, then tighten.
Place the rod tip in the bottom plate and attach the rod to the top bracket. Calibrate your vial to true plumb. Check your rod regularly — keeping that vial dialed in keeps your residuals tight!
The Complete Kit
A precision 5-part calibration kit designed for field surveyors who demand accuracy — and keep demanding it job after job.
Why PlumbRod™
Built for surveyors who check their work — and check it often.
A hanging plumb bob is the most accurate vertical reference that exists. No electronics, no drift, no batteries — just physics. The same principle surveyors have trusted for centuries, now in a repeatable calibration jig.
Mount to any wall or door jamb with standard screws. No permanent installation, no special tools, no calibration technician needed. Set it up, use it, store it — ready again whenever you need it.
No other calibration jig on the market is this straightforward to set up and use. Designed to deliver a perfectly plumbed reference every time, the PlumbRod™ belongs in every surveyor's office. Accurate, rugged, affordable — and built to keep your residuals tight.
Technical Specifications
Every dimension of the PlumbRod™ is purposeful. Here's what's under the hood.
Order Now →| Reference Height | 2.05 meters — full survey rod height |
| Plumb Bob | Precision brass, 6–8 oz |
| Rod Compatibility | Standard 5/8"-11 UNC threaded tip |
| Wall Mount | Any wall or door jamb |
| Hardware | Phillips-head screws & washers included |
| Components | 5-part precision kit |
| Material | High-strength printed components + optional brass plumb bob |
| Patent Status | Patent Pending #64/069,477 |
| Made In | USA |
Got Questions?
Order the complete PlumbRod™ kit — exclusively at 3DMappingTools.com