High-Precision Digital
Panel Meter Solutions
Monitor your power systems with absolute clarity. SENTOP digital meters provide Class 0.5 accuracy, True RMS measurement, and seamless RS485 Modbus integration for advanced energy management.
- Accuracy Class 0.5 / 0.2
- True RMS Measurement
- RS485 Modbus Communication
Comprehensive Monitoring Capabilities
From basic electrical parameters to advanced power quality analysis, SENTOP provides precision tools for every panel.
Voltmeters & Ammeters
Single-phase or three-phase measurement of AC/DC voltage and current. Features high-brightness LED for clear distance reading.
- True RMS Measurement
- Programmable CT/PT ratio
Multi-function Analyzers
Complete power parameter monitoring including kW, kVAR, Power Factor, and bidirectional energy (kWh) with LCD graphical display.
- 0.5S Accuracy Class
- Harmonics Analysis (THD)
Frequency & Special Meters
Specialized meters for grid frequency (Hz), motor tachometer (RPM), and hour counters for equipment maintenance scheduling.
- High Sampling Frequency
- Wide input frequency range
Smart Integration
Seamlessly connect to SCADA/BMS systems. Most models feature digital inputs, relay outputs, and analog (4-20mA) retransmission.
- RS485 Modbus RTU
- Remote Alarm Triggering
Featured SENTOP Measuring Instruments
High-reliability digital meters with programmable parameters and high-brightness displays.
Explore the Full SENTOP ATS Portfolio
Looking for specific current ratings up to 3200A, 4-pole configurations, or specialized intelligent controllers? Our complete range covers every PC and CB class requirement for global power systems.
Why Choose SENTOP Digital Meters?
Professional Measuring Standards vs Ordinary Entry-level Instruments
| Technical Focus | SENTOP Standards | Common Market Meters |
|---|---|---|
|
Processor Core
|
High-Speed 24-bit AD ConverterDedicated DSP for True RMS measurement. Maintains accuracy even in harmonic-rich environments. |
Standard 8-bit or 12-bit MCU. Significant errors occur when measuring non-sinusoidal waveforms or distorted loads. |
|
Housing Safety
|
UL94 V-0 Flame Retardant PCHigh-impact resistant casing. Will not support combustion, ensuring cabinet fire safety. |
Common ABS or recycled plastics. Brittle and may melt or catch fire during terminal overheating or internal failure. |
|
Terminal Block
|
Heavy-Duty Industrial TerminalsHigh-torque screw terminals ensure gas-tight connection, preventing loose contacts and measurement drift. |
Flimsy plug-in pins or thin metal clamps. Easily loosen due to vibration, causing arcing and inaccurate readings. |
|
Component Grade
|
Premium Long-Life CapacitorsIndustrial grade capacitors with 50,000h+ MTBF. Stable performance even in high-temperature cabinets. |
Low-cost consumer grade capacitors. Dry out quickly in industrial heat, leading to screen flickering or total device failure. |
|
EMC Stability
|
Advanced Shielding DesignCompliant with IEC 61000 standards. Effectively resists electromagnetic interference from VFDs and motors. |
No shielding. Readings jump or screen freezes when located near heavy motor starters or variable speed drives. |
Technical Selection Matrix
Compare key specifications of SENTOP measuring series to find the precise fit for your distribution system.
| Series Model | Display Type | Accuracy Class | Parameters Measured | Comm. (RS485) | Input Range | Standard Size (mm) |
|---|---|---|---|---|---|---|
| ST-V/A Series | High-light LED | 0.5 / 1.0 | Single Phase V / A | Optional | AC 0-500V / 0-5A | 96x96, 72x72, 48x48 |
| ST-3V/3A Series | 3-Line LED | 0.5 | 3-Phase V / A / Hz | Standard | AC 0-600V / 0-5A | 96x96, 72x72 |
| ST-964E Series | Graphical LCD | 0.5S / 0.2S | Full Power Parameters (U,I,P,Q,S,E,PF) | Modbus-RTU | Programmable CT/PT | 96x96 |
| ST-DC Series | Red/Blue LED | 0.5 | DC Voltage / Current | None | DC 0-1000V / With Shunt | 96x48, 72x72 |
| ST-F/PF Series | Single LED | 0.1 (Hz) / 0.5 (PF) | Frequency / Power Factor | None | AC 45-65Hz / 0.0-1.0 | 96x96, 72x72 |
| ST-Smart DIN | Digital LCD | Class 1.0 / 0.5S | Active/Reactive Energy (kWh) | DLT645 / Modbus | Direct 5(60)A / 10(100)A | 35mm DIN Rail |
Proven Performance in Every Sector
SENTOP digital meters are trusted globally for precision monitoring in critical power and automation environments.
Power Distribution Cabinets
The standard choice for LV/MV switchgears. Replaces traditional analog meters with high-precision digital readouts for voltage and current monitoring.
Industrial Automation (MCC)
Integrated into Motor Control Centers to monitor motor load and grid frequency, ensuring protection against Phase Loss or Overload via alarm outputs.
Solar PV & Battery Systems
Specialized DC meters for monitoring string combiner boxes and battery bank charge/discharge status with high-voltage isolation.
Smart Building Management
Seamlessly integrates with BMS via RS485 Modbus to provide real-time data on energy consumption, helping to optimize building efficiency.
Data Centers & Telecom
Monitoring PDU (Power Distribution Unit) status with 0.5S accuracy class to ensure critical uptime and prevent electrical system failure.
Power Quality Analysis
Used in manufacturing plants to monitor Total Harmonic Distortion (THD) and Power Factor, preventing utility penalties and equipment damage.
Pioneering Precision Digital Monitoring
For over 15 years, SENTOP has been at the forefront of electrical measurement innovation. From our 10,000m² advanced production facility, we deliver high-accuracy Digital Panel Meters and multi-function power analyzers to the global automation and energy management markets.
By integrating True RMS technology with smart communication protocols like RS485 Modbus, we provide real-time, reliable data visualization that helps industries optimize power quality and reduce energy costs across 60+ countries.
Trusted for Accurate Data Visualization
Discover why professional panel builders and energy managers choose SENTOP for reliable electrical measurements.
"The Class 0.5S accuracy of SENTOP meters is exactly what we needed for our high-end switchgear projects. The LED display is extremely crisp and readable even from a distance. Their flame-retardant V0 casing also helps us pass strict fire safety audits easily."
"Integrating SENTOP multi-function meters into our SCADA system was effortless via RS485 Modbus. The data polling is stable and the True RMS measurement provides much more reliable readings under harmonic loads compared to our previous suppliers."
"As an energy management consultant, I highly recommend SENTOP's LCD series. The 3-phase parameter monitoring is comprehensive, and we haven't seen a single unit failure in over 24 months of continuous operation in a high-temperature industrial environment."
Digital Meter Frequently Asked Questions
What is the meaning of Accuracy Class 0.5S in your meters?
Why is True RMS measurement important for digital meters?
Do SENTOP digital meters support RS485 Modbus communication?
What standard cut-out sizes do you provide?
- 96x96mm (Standard): Most common for main distribution panels.
- 72x72mm / 48x48mm: Compact sizes for smaller control boxes.
- 96x48mm: Horizontal format for specialized monitoring desks.
