Best Wireless 4-20mA Transmitter Solutions for Industrial andAutomation Needs
Looking for reliable wireless 4-20mA transmitters to move signals from sensors to controllers without wired runs? This guide highlights five solid options, covering basic wireless repeaters, temperature RTD transmitters, load-cell signal transmitters, a versatile universal transmitter, and a wireless clamp meter. Each choice targets different use cases—from simple single-point transmissions to multi-parameter monitoring—so you can pick the best fit for your setup and budget.
Buying at a glance: the following table compares the five selected wireless 4-20mA transmitters. Use this to quickly assess ideal applications, signal ranges, and input types.
| Product | |||
|---|---|---|---|
| SHXZDZWM 2-Channel Wireless Analog Transmitter and Receiver | Single 4-20mA or 0-10V signals across sites | Plug-and-play; up to 2 miles at 915 MHz | Up to 2 miles |
| uxcell PT100 Temperature Sensor Transmitter 24V DC 4-20mA | Temperature monitoring with RTD PT100 | -50°C to 200°C or -50°C to 50°C variants | Depends on installation; typical industrial range |
| Vikye DY510 Load Cell Transmitter | Weighing and force measurement with 4-20mA output | High precision and built-in protections | Industrial environments |
| Ace Instruments Novus Tx-USB Temperature Transmitter | Universal input with 4-20mA loop-powered output | Multiple sensor compatibility and programmable zero/span | Industrial automation |
| Fluke FLUKE-A3004FC Wireless 4-20mA Clamp Meter | Non-invasive 4-20mA signal measurement | Detachable clamp, handheld or system integration | Tight spaces and field setups |
SHXZDZWM 2-Channel Wireless Analog Transmitter and Receiver
The SHXZDZWM unit transmits a single 4-20mA or 0-10V signal wirelessly from a local point to a remote receiver. It is designed for plug-and-play operation in most applications, making it suitable for facilities that need to deploy quickly without extensive configuration. Best for facilities requiring wireless replication of a single channel across two locations. A noted limitation is the maximum range, which may be affected by environment and interference, so plan for line-of-sight or higher-gain antennas in challenging sites.
uxcell PT100 Temperature Sensor Transmitter 24V DC 4-20mA (-50°C to 200°C)
This transmitter uses a PT100 RTD sensor and provides a 4-20mA current output powered by 24V DC. It covers a broad temperature range from -50°C to 200°C, with a stated precision of ±0.2% of full scale. It’s best for temperature monitoring in process control, HVAC, and industrial automation. The potential limitation is its range and environmental conditions that can influence measurement accuracy, so ensure proper sensor calibration and shielding in harsh environments.
Vikye DY510 Load Cell Transmitter
The DY510 is designed for weighing and force sensing with a 4-20mA output. It emphasizes high precision, stability, and durability, with internal regulation and protections. It’s best for weighing systems, batch control, and material testing where a robust analog signal is required. A caution is the potential need for external zero/gain adjustments and proper impedance matching in complex installations.
Ace Instruments Novus Tx-USB Temperature Transmitter
The Ace Instruments Tx-USB provides universal input support for thermocouples and RTDs with a 4-20mA output. It is loop-powered and programmable for zero and span via software, offering flexible integration into various industrial processes. It suits facilities needing multi-sensor compatibility and digital configuration. A limitation is that setup requires software access and a compatible power supply range of 10-35 Vdc.
Fluke FLUKE-A3004FC Wireless 4-20 Milliamp DC Clamp Meter
The Fluke A3004FC is a wireless clamp meter designed to measure 4-20 mA signals without breaking the loop. It can operate as a standalone tool or as part of a broader wireless monitoring system. It is best for field technicians who need non-intrusive current measurements in tight spaces. A potential limitation is that it focuses on measurement rather than direct signal transmission to a distant controller; use it alongside a transmitter if remote monitoring is required.
Buying Guide
What should you consider when choosing a wireless 4-20mA transmitter?
- Signal type and input compatibility: Do you need 4-20mA, 0-10V, or thermocouple/RTD support? Ensure the device matches your sensor outputs and control system.
- Power supply and installation: Is the unit loop-powered or requires an external supply? Confirm voltage requirements (e.g., 24V DC) and whether installation supports 2-wire or 3-wire configurations.
- Wireless range and environment: What is the required transmission distance, and will you have line-of-sight? Consider environmental factors like metal enclosures, interference, and walls that can affect range.
- Special features and protections: Look for features such as input protection, short-circuit protection, cold junction compensation, and impedance matching for accuracy and durability.
- Integration and software: Do you need programmable zero/span, universal input, or software-based configuration? Ensure compatibility with existing control systems and PLCs.
- Maintenance and accessibility: Consider devices with easy calibration, modular components, and clear documentation for ongoing maintenance in industrial settings.
- Cost vs. performance: Balance initial cost with features like range, protection, and multi-channel capability to fit your application and budget.
Technical considerations at a glance
- Best for single-point wireless signaling: SHXZDZWM is convenient for quick deployments.
- Best for temperature monitoring: uxcell PT100 RTD transmitters provide broad temperature coverage.
- Best for weighing and force sensing: Vikye DY510 excels in precision for load cells.
- Best for universal sensor inputs: Ace Instruments Tx-USB offers flexible sensor compatibility and software programmability.
- Best for measurement alongside wireless options: Fluke A3004FC supports non-intrusive current measurement in the field.
Frequently asked questions
- What is a wireless 4-20mA transmitter used for?
It transmits a 4-20mA current loop signal from a sensor to a remote controller without wired connections, enabling remote monitoring and control.
- Can 4-20mA devices work through walls or metal enclosures?
Range depends on the wireless technology and environment. Line-of-sight improves reliability; in challenging spaces, consider higher-grade transmitters or repeaters.
- Which transmitter is best for RTD temperature sensing?
uxcell PT100 RTD transmitters are specifically designed for RTD sensors and offer wide temperature ranges with 4-20mA output.
- Do I need a different transmitter for 0-10V signals?
Yes, some devices support 0-10V directly; others convert 4-20mA to 0-10V. Verify the device’s output compatibility with your controller.
- Is a wireless clamp meter enough for a complete system, or do I still need transmitters?
A wireless clamp meter measures current without breaking the loop but does not replace a transmitter to send process signals to a distant controller. Use it alongside a transmitter if remote monitoring is required.
- What should I consider when selecting a device for a harsh industrial environment?
Look for robust construction, protective features, EMI resistance, and explicit documentation of operating temperature and vibration tolerance.