Overview
The Simpson Model 25R is a classic analog panel meter engineered for straightforward DC current measurement. This model represents Simpson’s Pioneer Standard Electronics line, a trusted benchmark in analog instrumentation. The 0-1DCMA (0-1 DC milliampere) scale makes this meter ideal for low-current circuit monitoring, diagnostics, and quality control applications where precision and reliability are essential.
Key Features
- 0-1 DC milliampere measurement range
- Rugged analog movement with clear, easy-to-read scale
- Glass window front for unobstructed viewing
- Durable construction suitable for panel mounting
- Classic design from Simpson’s Pioneer Standard Electronics series
- New in original box with mounting hardware
Technical Specifications
- Measurement Type: DC Current (0-1 milliamperes)
- Meter Series: Pioneer Standard Electronics, Model 25R
- Scale Configuration: 0-1DCMA
- Display Type: Analog movement with glass window
- Mounting Style: Panel mount (round)
- Case Material: High-density black plastic
- Condition: New in Box
Typical Applications
The Simpson Model 25R is well-suited for:
- Low-level DC current measurement in test equipment
- Laboratory and bench-top circuit analysis
- Panel-mounted monitoring of small current circuits
- Industrial control system diagnostics
- Instrumentation and prototyping work
- Maintenance and troubleshooting of electronic systems
Compatibility & Replacements
Compatible With
- Any standard panel cutout accepting round analog meters (2-1/2″ standard)
- DC current-based measurement circuits and systems
- Industrial control panels and instrumentation racks
- Laboratory test benches and diagnostic equipment
Replaces / Drop-In Replacement For
The Simpson Model 25R is a direct replacement for applications previously using Simpson Pioneer Standard Electronics meters with 0-1 DC milliampere specifications. Contact your system integrator to confirm exact mechanical and electrical compatibility with your installation.
Works With
- Any DC current source or measurement circuit (0-1 mA range)
- Analog measurement systems and legacy industrial equipment
- Standard panel mounting configurations for round analog meters
- Laboratory power supplies and test signal generators

