Overview
The ATE300M is a multi-loop wireless temperature sensor specifically designed for monitoring multiple electrical joints in low-voltage switchgear, particularly drawer cabinets. It features a host unit that connects to 1-6 external NTC probes, enabling centralized monitoring of multiple temperature points. The sensor is powered by an external AC/DC power supply and transmits data via wireless communication over long distances. With rail or tie mounting, it offers flexible installation in various cabinet layouts.
Highlight
Multi-point monitoring
- Up to 6 NTC probes per host
- Ideal for drawer cabinets
- Low cost per point
- Centralized data management

Long transmission range
- 1000m range (433-510MHz)
- Reliable in large plants
- Penetrates multiple cabinets
- Campus-wide monitoring

Flexible power supply
- AC 85-265V or DC 100-300V
- No battery, maintenance-free
- Compatible with various sources
- Continuous operation

Easy installation
- DIN rail or tie mounting
- Probe fixes with screws/ties
- Adapts to space constraints
- Cable lengths: 0.5/1.2/2.5m

Function
| Multi-channel Temperature Measurement | supports 1-6 NTC probes (optional), aperture 12mm, cable lengths: 0.5m, 1.2m, 2.5m |
| Power Supply | AC 85~265V or DC 100~300V |
| Wireless Communication | frequency 433-510MHz, open area range up to 1000m |
| Sampling Frequency | configurable 1-240s |
| Installation | rail type or tie type |
| Application | electrical joints in low-voltage switchgear (0.4kV) |
Specification
| English Parameter | Value |
| Wireless Frequency | 433-510MHz |
| Communication Distance (open area) | 1000m |
| Sampling Frequency | 1-240s configurable |
| Power Supply | AC 85~265V, DC 100~300V |
| Temperature Range | -40°C ~ +150°C |
| Accuracy | ±1°C |
| Installation | Rail type / Tie type |
| Sensor Probe | Options 1-6, split-type NTC: aperture 12mm, lengths 0.5m, 1.2m, 2.5m |
| Voltage Level | 0.4kV low-voltage only |
| Application | Joints in low voltage switchgear |
Show More
Additional NTC Probes – various cable lengths available (0.5m, 1.2m, 2.5m)
Mounting Accessories – rail clips, tie wraps
Summary
The ATE300M multi-loop wireless temperature sensor provides an efficient solution for monitoring multiple temperature points in low-voltage switchgear (0.4kV). By connecting up to 6 external NTC probes to a single host, it reduces equipment costs while enabling centralized monitoring. With long-distance wireless transmission up to 1000m, flexible power supply options, and configurable sampling frequency, it adapts to various application scenarios. Factory pre-pairing with ATC600-M simplifies installation and ensures reliable communication.
FAQ
No. ATE300M is designed specifically for 0.4kV low-voltage applications. For 3-35kV medium-voltage and high-voltage switchgear, please use ATE200/ATE200P or ATE400 series sensors which are designed with appropriate insulation and safety features.
The ATE300M supports 1 to 6 NTC probes, configurable according to your monitoring needs.
It accepts AC 85~265V or DC 100~300V, making it compatible with various power supplies in switchgear.
In open areas, the communication distance can reach up to 1000m. Actual range may vary depending on cabinet shielding and environmental factors.
Yes, the sampling frequency is configurable from 1 second to 240 seconds to balance monitoring resolution and data traffic.
The NTC probes have a 12mm aperture and are available in cable lengths of 0.5m, 1.2m, and 2.5m to suit different installation points.
The host can be mounted on a DIN rail or secured with ties inside the cabinet. Probes are fixed to the measurement points using screws, ties, or silicone adhesive.
Yes. The ATE300M is designed to pair with ATC600-M coordinator. The group number should match, and installation follows the code label sequence.

