SCYC-PWTM2304 is a passive wireless online temperature monitoring system designed for high-voltage transmission lines, conductor plates, tension clamps, and AC/DC substations. Powered by high-voltage electric field induction power extraction (no batteries, no CT current dependency), it enables real-time, contactless, high-isolation temperature measurement for critical power equipment.
The system integrates passive temperature sensors, data receivers/forwarders, and cloud communication. It supports 2.4GHz RF digital transmission, unique sensor ID recognition, long-distance communication, and high anti-interference performance. With a measurement range of -30℃ to 135℃, accuracy of ±(standard reading ×1% +1℃), and 0.1℃ resolution, it delivers stable, maintenance-free operation for lifetime use.
Ideal for 35kV–1000kV transmission lines, railway traction substations, grid substations, and converter stations, it provides real-time anomaly alarms, remote cloud monitoring, and automated early warning to prevent overheating failures, reduce manual inspection, and improve power system safety and reliability.
| Temperature sensor parameters | |
| Temperature measurement range | -30 ℃～ 135 ℃ |
| Temperature measurement accuracy | ± ( standard reading × 1% + 1 ℃ ) |
| resolution | 0.1 ℃ |
| Sensor size | Built into the insulating plug |
| Power supply method | Inductive power supply, no built-in battery required. |
| Measurement cycle | The initial power-on time is less than 20 minutes, and the measurement cycle is less than 3 minutes. |
| Radio frequency standards | 2.4GHz |
Technical Features
1 ) Temperature measurement and wireless digital communication are achieved based on high-voltage inductive power extraction technology .
2 ) Each sensor has a unique ID code and a long wireless communication distance.
3 ) Passive temperature sensors do not require built-in batteries, use digital measurement and digital transmission; they eliminate battery risks, have good anti-interference capabilities, and are efficient and stable .
4 ) The passive temperature sensor is permanently maintenance-free and can be directly integrated with existing products or encapsulated into a single unit .
5 ) The passive temperature sensor uses wireless communication, high-voltage isolation , and is safe and reliable; it is also convenient for construction and maintenance.
For detail about this product, please download brochure from here.
- For international sale, please contact:
Qingdao Britop International Trading Co.,Ltd.
Website: https://qdbritop.com
Contact: Bright Meng
Email: britop@qdbritop.com - Tel (Wechat): +8613811458455
passive wireless temperature monitoring, SCYC-PWTM2304, high voltage temperature sensor, substation temperature monitor, transmission line temperature detector, battery-free temperature sensor, inductive power temperature monitor
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