2um Digital South DL Invar Levelling Staff Height Pole Measuring Device

High Accuracy Digital Level South DL Accessory Barcoded Invar Levelling Staff 2m

Model: ISBN2

Specification:

Additonal Devices For Options:

1. 3Kg/5Kg Foot Plate of Invar Staff

2. Invar Staff Supports

3. LED Light Strip

Surveying Accessory Invar Rods

Invar Grade Rods are used in land surveying when first-order high-precision elevation leveling is to be performed. The Grade Rod, also known as Leveling Rods and Leveling Staff are made of Invar which is a nickel–iron alloy notable for its uniquely low coefficient of thermal expansion. The name "Invar" comes from the word invariable, which refers to its relative lack of expansion or contraction with temperature changes which directly lends itself to making the most reliable rod for measuring elevation changes in land.

Introduction of ISBN2 Invar Rods:

1. 2m Invar rods (Invar staff) for Digital Level South brand DL levels

2. Sell in pairs (2pcs). 2 Pieces will be packed in an aluminium case.

3. Aluminum case cost is included. Extra paper carton as outer package.

4. With high accuracy Random Graudation Errors less than 2μm

5. Highest standard accuracy invar staff in Chinese market

6. Barcodes are laser making but not printed (most factories are printed), which gurantees the high accuracy.

7. Speical length (e.g 50cm or any length less than 2m) can be supplied as customer's needs.

What We can Supply:

We can supply both barcoded staff and graduated staff for customers. Barcode marking staff is used for digital levels and graduated marking staff is used for optical levels.

So far we have supplied levelling staffs for many different levels brands like Trimble, Topcon, Leica, GeoMax, South, Sokkia, etc.

50cm 1m 2m 3m are available.

Package: 2pcs/pair in one aluminum case