CT101 – LoRaWAN RMS Current Sensor with NTC Probe – Milesight
General Description
Milesight 's CT101 is a smart RMS current sensor designed to measure power consumption using a greenhouse current sensor (CT Clamp). It also incorporates an NTC temperature probe for additional environmental readings. Thanks to LoRaWAN® connectivity, it enables reliable and accurate remote monitoring. Compact and easy to install, it is ideal for smart buildings, industrial installations, or electrical panels. Its measurement accuracy reaches ±1% for currents above 5 Arms.
Targeted Applications
- Energy consumption monitoring
- Control of electrical panels in buildings
- Industrial facilities management
- Temperature measurements in electrical environments
Highlights
- RMS current measurement with ±1% accuracy
- Integrated NTC temperature probe (-20°C to 100°C)
- Long-range LoRaWAN® technology
- USB Type-C connector for configuration or power supply
- Cable tie mounting, easy installation
- Low consumption and autonomous operation
- IP30 protection rating
Technical Specifications
Electrical Measurements |
Measured parameter |
RMS current |
Sampling frequency |
3.3 kHz |
Working frequency |
50~60 Hz |
Nominal primary current |
100 Arms |
Nominal secondary current |
100 mArms |
Minimum current detected |
6 Arms (1 min) / 4 Arms (10 min) |
Precision |
±1% (>5Arms), ±3% (≤5Arms) |
Resolution |
1 mA |
Temperature probe |
Sensor type |
NTC |
Measuring range |
-20°C ~ 100°C |
Precision |
±1% |
Wireless Transmission |
Technology |
LoRaWAN® |
Frequencies |
CN470 / IN865 / RU864 / EU868 / US915 / AU915 / KR920 / AS923-1/2/3/4 |
Transmit power |
16 dBm (868 MHz), 22 dBm (915 MHz), 19 dBm (470 MHz) |
Sensitivity |
-137 dBm |
Fashion |
OTAA / ABP – Class A |
Antenna connector |
1 × SMA female (50 Ω) |
Other Features |
Button |
1 × reboot button |
LED indicator |
1 × status/alarm |
Port |
1 × USB Type-C (power supply, console or temperature sensor) |
Configuration |
Via USB Type-C or Downlink |
Physical Characteristics |
Food |
Induction or via USB Type-C (5V) |
Insulation voltage |
2.5 kVac (1mA, 1min) |
Operating temperature |
-20°C to 70°C |
Storage temperature |
-25°C to 80°C |
Relative humidity |
≤ 95% (non-condensing) |
Protection index |
IP30 |
Dimensions |
86.5 × 31 × 37.4 mm |
Weight |
85.65 g |
Cable diameter |
F 16 mm |
Facility |
Sensor: cable suspension / Transmitter: cable clamp mounting |
Compliance |
Certifications |
CE, FCC, UL508 |
Interfaces and Connectors
The CT101 features an SMA antenna connector, a USB Type-C port for power and configuration, and a terminal block for the NTC temperature sensor.
Pack Contents
- 1 × CT101 Current Sensor
- 1 × User Guide
- 1 × Fixing kit (clamp, screws)