Portable Wheatstone Bridge
Product Code : SCL-PLE-11818
Quick Answer: The Portable Wheatstone Bridge is a self-contained resistance bridge with ratio arms, a decade-dial rheostat arm, a built-in centre-zero galvanometer and an internal battery in a carrying case, measuring unknown resistances from 0.01 Ω to 10 MΩ by null balance.
Last updated: 18 October 2026
Key Features
- Four-arm bridge: ratio arms, rheostat arm and unknown.
- Multi-range measurement from 0.01 Ω to 10 MΩ.
- Selectable ratio-arm multipliers.
- Built-in centre-zero pointer galvanometer.
- Internal DC battery, with provision for an external supply.
- Portable carrying case with protective lid.
Technical Specifications
| Specification | Value |
|---|---|
| Bridge configuration | Four-arm: ratio arms, rheostat arm, unknown |
| Measurement range | 0.01 Ω to 10 MΩ, multi-range |
| Ratio arms | Selectable multipliers |
| Rheostat arm | Integrated decade resistance dials |
| Galvanometer | Built-in, centre-zero pointer |
| Power | Internal DC battery; external supply provision |
| Unknown terminals | 4 mm binding posts (Rx) |
| Case | Portable, high-impact, protective lid |
How It Is Used
The unknown resistor is connected to the Rx posts and a suitable ratio multiplier chosen. The rheostat dials are adjusted until the built-in galvanometer reads zero, and the unknown resistance is the dial reading multiplied by the ratio setting. Everything needed is in the case, so it can be used at any bench or outside the lab.
Frequently Asked Questions
What range does the Portable Wheatstone Bridge measure?
Unknown resistances from 0.01 Ω to 10 MΩ, across selectable ranges.
Does the Portable Wheatstone Bridge need an external galvanometer?
No. A centre-zero galvanometer and a DC battery are built in, with provision for an external supply.
Related Physics Lab Equipment
See the full physics lab equipment range, or these related resistance measurement items:
- Wheatstone Bridge Apparatus
- 7 Decade Resistance Box
- Resistance Box 10000 Ohms
- Resistance Box 500 Ohms
- Digital Ohms Meter - 20K
Export enquiries for the Portable Wheatstone Bridge are welcome from buyers in São Tomé and Príncipe, Kiribati, Samoa, Kazakhstan and Jordan.
For a quotation on the Portable Wheatstone Bridge, contact JLab India on +91-8569909696.
.jpg)
.jpg)
.jpg)
.png)