Wireless Temperature Transmitter | Industrial LoRa & 4G Sensor | MT1280
The MT1280 Industrial Wireless Temperature Transmitter provides cable-free thermal telemetry for process fluids, gas lines, and remote industrial pipe networks. Certified intrinsically safe (II 1G Ex ia da op is IIC T4 Ga) and powered by an internal 3.6V lithium battery, the MT1280 combines high-accuracy sensing with long-range LoRa, NB-IoT, or 4G telemetry to eliminate field wiring overhead.
-
Wireless Telemetry: Supports LoRa (up to 1000m line-of-sight), NB-IoT, and 4G communication protocols.
-
Intrinsically Safe: Explosion-proof certified for deployment in hazardous industrial process zones.
-
Long Battery Life: Designed with micro-power management (sleep current ≤15µA) for multi-year field operation.
-
Wide Thermal Scope: Measures process medium temperatures from -30°C to +300°C (customizable up to +500°C).
Description
Cable-Free Industrial Thermal Telemetry
Modern industrial plants and remote pipeline networks require reliable thermal tracking without the prohibitive cost of physical conduit and signal wiring. The MT1280 Wireless Temperature Transmitter integrates a precision sensing element, low-power microcontroller, and multi-band radio into a rugged, IP67 industrial enclosure.
Designed primarily for crude oil lines, water utility distribution networks, steam lines, and chemical processing skids, the MT1280 delivers real-time thermal telemetry directly to SCADA systems, PLC networks, or cloud monitoring platforms. By combining customizable upload frequencies (30 seconds to 12 hours) with threshold-activated change reporting, the unit conserves power while ensuring immediate alerts during thermal spikes.
Flexible Protocol Architecture & Systems Integration
The MT1280 communicates via GFSK, LoRa, NB-IoT, or 4G networks. For multi-node site deployments, signals can be received by matching wireless gateway devices that convert wireless temperature data into standard RS485 Modbus RTU or Ethernet outputs for direct PLC/SCADA integration.
Versatile Structural Configurations
To fit varied process geometries, the MT1280 platform offers three structural designs:
-
MT1280 (Classic Integrated): Direct-mount housing with integrated process thread for direct insertion into pipe walls or tanks.
-
MT1281 (Separated Remote Probe): External Pt100/Thermocouple probe linked via high-temperature cabling, supporting extreme thermal applications up to 450°C/500°C.
-
MT1282 (Dual Pressure & Temperature Combo): Dual-parameter sensor measuring fluid line pressure and thermal values through a single process tapping.
Features
-
Multi-Carrier Wireless Connectivity: Integrated radio modules supporting LoRa (433MHz / 868MHz / 915MHz), NB-IoT (B3/B5/B8), and 4G LTE bands.
-
Intrinsically Safe Construction: Fully certified II 1G Ex ia da op is IIC T4 Ga explosion-proof rating for volatile petrochemical environments.
-
Micro-Power Operating System: Ultra-low standby draw (sleep current ≤15µA, reporting average ≤30mA) powered by a 3.6V lithium cell.
-
Local Visual Interface: Integrated 5-digit LCD panel displays real-time values, physical units (°C), radio signal strength, channel ID, and battery voltage.
-
Configurable Alert Logic: User-programmable upper/lower threshold alarms, timed uploads, and change-of-state reporting.
-
Multi-Gateway Network Topology: Supports up to 65,535 distinct network IDs across 16 physical channels to prevent radio interference in dense installations.
-
316 Stainless Steel Wetted Parts: Media-compatible construction suited for process gases, industrial water, thermal oils, and chemicals.
Specification
| Technical Parameter | Specification |
| Model Series |
MT1280 (Integrated) / MT1281 (Separated) / MT1282 (Pressure-Temp Combo) |
| Standard Temperature Range |
-30°C to +300°C |
| Extended Temperature Range |
Custom options up to -60°C to +500°C (MT1281 Remote Probe) |
| Measurement Accuracy |
±0.5°C (typical) or ±1.0°C |
| Long-Term Stability |
±0.1% F.S / Year (typical) |
| Primary Power Supply |
3.6V Lithium Battery |
| Average Current Consumption | Reported average ≤30mA |
| Radio Protocols |
LoRa / GFSK / NB-IoT / 4G |
| LoRa Operating Frequencies |
Default 433MHz (Customizable: 868MHz, 915MHz, 2.4GHz) |
| Wireless Range | LoRa: Up to 1000m (Line-of-Sight) |
| Reporting Interval |
30 seconds to 12 hours (User configurable) |
| Enclosure Rating & Explosion Proof | IP67 |
| Process Connection |
Standard M20 × 1.5 Male Thread (Custom threads on request) |
| Wetted Materials |
316 Stainless Steel |
FAQ
Q: What is the primary operational difference between the MT1280 and MT1281 models?
A: The MT1280 features an integrated housing where the electronics and probe form a single rigid body, ideal for standard pipe threads. The MT1281 utilizes a separated remote probe connected by high-temperature cabling, allowing the electronic display housing to stay cool while the probe measures extreme fluid or gas temperatures up to 450°C/500°C.
Q: How does wireless temperature data reach my central PLC or SCADA system?
A: For 4G/NB-IoT models, data streams directly to cloud servers via cellular base stations. For LoRa models, signals are transmitted to a matching wireless gateway that converts the radio transmissions into standard Modbus RTU (RS485) or Modbus TCP (Ethernet) protocols for direct connection to PLCs.
Q: Can this sensor be deployed in hazardous oil & gas environments?
A: Yes. The MT1280 is certified intrinsically safe under II 1G Ex ia da op is IIC T4 Ga, making it suitable for hazardous gas and liquid processing zones.
Q: How long does the internal lithium battery last?
A: Battery lifespan depends on the configured reporting frequency. Operating under ultra-low power modes with a sleep current of ≤15µA, reporting intervals set to standard hourly cycles typically yield 1 to 3+ years of continuous service.
