ATO single-phase voltage sensor is equipped with a pure copper coil and a high magnetic permeability core. Combined with an accuracy of ±0.5% F.S and a temperature drift of ≤200PPM/℃, it ensures accurate and stable voltage signal acquisition. The built-in voltage regulator tube and lightning protection module achieve a 3KV isolation withstand voltage and strong anti-surge power supply stability. Voltage detection sensor is made of flame-retardant materials to enhance safety. It adopts a standard guide rail plus flat screw method, adapts to the working environment of -20~+80℃, and balances usability and scenario adaptability.
Specification
| Model |
ATO-SIN-DZU |
| Input |
DC Voltage |
| Measurement Range |
0-1000mV/0-1000V Optional |
| Mounting Method |
Standard Guide Rail + Flat Screw |
| Load Capacity |
Voltage Output - 5mA; Current Output - 6V |
| Accuracy |
±0.5% F.S |
| Overload Capacity |
2×Rated Input |
| Isolation Withstand Voltage |
3KV/50HZ 1Min |
| Offset Voltage |
≤10mV |
| Operating Temperature |
-20~+80°C |
| Storage Temperature |
-25~+85°C |
| Temperature Drift |
≤200PPM/°C |
| Power Supply |
24V/220V |
| Frequency Range |
40-60Hz |
| Weight |
500g |
| Transducer Output |
4-20mA, 0-20mA, 0-5V, 1-5VDC, 220V Optional |
Features
- High-precision measurement performance: ±0.5% F.S accuracy with ≤200PPM/℃ low temperature drift, pure copper coil + high magnetic induction core design, ensuring accurate and stable DC voltage signal acquisition.
- Strong anti-interference and safety protection: 3KV isolation withstand voltage capability, built-in lightning protection module and voltage regulator tube, supporting 2 times the nominal input overload protection, flame-retardant materials enhance the safety of use in industrial scenarios.
- Flexible adaptation and ease of use: Voltage transducer supports multi-specification transmission outputs such as 4-20mA/0-20mA/0-5V/1-5VDC, can be customized with 220V output, compatible with PLC, digital display instruments, recorders and power distribution cabinet systems.
- High adaptability and convenience: -20~+80℃ wide operating temperature range, -25~+85℃ storage temperature adapted to complex industrial environments; standard guide rail + plane screw installation method for efficient deployment.
- Stable and low-power design: Single phase DC voltage sensor has 24V/220V power supply, only 1W low power consumption operation, 40-60Hz frequency adaptation, more energy-saving and reliable for long-term use.
Dimension

High-Current Voltage Monitoring Solution

Application

3 Advantages of ATO Single Phase Voltage Sensor
With countless voltage sensors on the market, picking the right one isn't just about "getting the job done"—it's about locking in stable, accurate data, avoiding downtime from flimsy parts, and fitting seamlessly into your existing systems. ATO single phase voltage sensor stands out by fixing the common pain points (overheating, unstable signals, weak protection) that cheap options bring. Here are its three core advantages:
Upgraded Pure Copper Coil
Our voltage detection sensor uses a pure copper coil (not cheap aluminum coils) paired with a high magnetic permeability core. Unlike aluminum coils that overheat easily and drift in data, the pure copper coil stays cool, keeps voltage measurements accurate, and lasts longer—so you get reliable data even in long-term use.
Enhanced Voltage Regulator
ATO voltage transducer upgraded the voltage regulator tube inside the sensor. This small part makes the power chip run more stably: It prevents sudden voltage fluctuations from messing up the sensor's output, so the voltage data it sends stays consistent (no random jumps or errors).
Built-in Lightning Protection Module
With an added lightning protection module, the sensor has better isolation against surges (like lightning strikes or power spikes). This means it won't get damaged by sudden electrical shocks, and it keeps working normally even in noisy industrial environments.
Whether you’re monitoring power in distribution cabinets, pairing with PLC systems, or tracking data via recorders, single phase voltage sensor delivers the reliability and performance you need to keep your electrical setups running smoothly. It’s not just a sensor—it’s a long-term, low-cost solution for consistent voltage monitoring.