Resistance P.O. Box 4 Manufacturer,Supplier and Exporter in India
Product Code : JA-SI-8109
The Resistance P.O. Box 4 (SKU JA-SI-8109) is a Post Office pattern resistance box for Wheatstone bridge work where a closer accuracy is wanted. Both columns use 14 mm thick rectangular brass blocks, and the listed accuracy is +/-0.02% to 0.005%. The listing names two manganin-coil versions: Resistance P.O. Box 3 and Resistance P.O. Box 4.
Specifications
Values as listed:
| Product | Resistance P.O. Box 4 |
| SKU | JA-SI-8109 |
| Blocks | 14 mm thick rectangular brass blocks, both columns |
| Accuracy | +/-0.02% to 0.005% |
| Versions | P.O. Box 3 (manganin coil), P.O. Box 4 (manganin coil) |
Scope of supply and ordering
Name the P.O. Box 3 or P.O. Box 4 version when you enquire; quantities and packing are confirmed on the quotation.
Frequently asked questions
What accuracy is listed for the P.O. Box 4?
+/-0.02% to 0.005%.
Which versions are available?
Resistance P.O. Box 3 and Resistance P.O. Box 4, both with manganin coils.
Related products
- Resistance P.O. Box
- Resistance Box Constantan & Manganin
- Economical Resistance Box Dial Type
- Portable Wheatstone Bridge
See our scientific instrument range for related resistance apparatus.
Request a quote
To order the P.O. Box 4 or P.O. Box 3, state the version and quantity on the contact page. Tender and project enquiries can be sent through the tenders page.
