Product Overview
One board. Three critical readings. Instantly readable from 60 meters.
The AT-THMT-D-T is an industrial-grade LED display engineered to show real-time temperature, humidity, and date/time in a single large-format board — purpose-built for factories, cold storage, warehouses, hospitals, and any environment where environment data must be visible at a glance.

Why Your Facility Needs a Real-Time Environmental Display
In industrial and commercial environments, temperature and humidity are not just comfort metrics — they are operational and compliance-critical parameters. Invisible fluctuations can lead to:
- Product spoilage in food processing, cold storage, and pharmaceutical facilities
- Quality failures on production lines with humidity-sensitive processes
- Regulatory non-compliance in cleanrooms, laboratories, and medical environments
- Equipment degradation caused by sustained excess humidity or heat
- Worker safety risks in extreme temperature environments
Manual spot-checks with portable thermometers or handheld hygrometers are unreliable, labor-intensive, and provide no continuous visibility. The AT-THMT-D-T transforms passive environmental data into a highly visible, always-on display that anyone on the floor can read at any time — without walking to a control panel or checking a screen.
What Makes the AT-THMT-D-T Different
Unlike basic thermometers or single-parameter displays, the AT-THMT-D-T combines three functions in one professional industrial board:
Temperature – Measured in real time with ±1°C accuracy across a -40°C to +125°C range, covering deep-freeze to high-heat industrial applications. For applications that only require temperature monitoring, the AT-TMT-T Industrial LED Temperature Display provides a dedicated large-format temperature display solution with optional Modbus RTU communication.
Humidity – Displayed in %rH with ±5% accuracy across a 0–100% range, using the industry-trusted SHT30 sensor by SENSIRION EUROPE.
Date and Time (Day / Month / Year) – The integrated date-time display eliminates the need for a separate wall clock. Operators can cross-reference environmental readings with the exact date and time on the same screen, critical for audit trails and compliance documentation.
All three parameters are displayed simultaneously on a large 4-inch, 14-digit high-brightness LED board visible from up to 60 meters away — far outperforming standard small-format thermometers and LCD displays.

Key Features & Benefits
📏 Exceptional Viewing Distance: Up to 60 Meters
With 4-inch high-brightness LED digits, the AT-THMT-D-T can be read clearly from 60 meters — ideal for large warehouse aisles, open factory floors, logistics halls, and multi-level facilities where workers need to see readings without leaving their workstation.
🌡️ Wide Measurement Range: -40°C to +125°C / 0–100% RH
A single device covers the full spectrum of industrial environments — from deep-freeze cold storage at -40°C to high-temperature production lines at +125°C, and every humidity level from bone-dry to fully saturated.
🔬 High-Precision SHT30 Sensor (SENSIRION EUROPE)
The AT-THMT-D-T uses the SHT30 sensor from SENSIRION EUROPE, a Swiss precision sensor manufacturer widely regarded as a global leader in humidity sensing technology. This ensures measurement stability, long sensor life, and consistent accuracy across diverse industrial environments.
📅 Integrated Date & Time Display (Day / Month / Year)
No need for a separate wall clock. The AT-THMT-D-T simultaneously displays temperature, humidity, and the current date — helping staff correlate environmental conditions with specific dates for shift reports, compliance records, and quality audits.
🔌 Optional RS485 Modbus RTU Communication
Connect the AT-THMT-D-T to any Modbus-compatible PLC, SCADA, BMS, MES, or data logger via RS485 to centralize environmental data, log historical trends, trigger smart alerts, and integrate into your existing industrial IoT infrastructure.
🏗️ Industrial-Grade Aluminum Alloy Construction
The black aluminum alloy frame with 3mm Taiwan acrylic panel and laser-etched, professionally painted characters is engineered for durability in demanding industrial environments. The internal PIC 16F887 (USA Microchip) CPU ensures stable, reliable operation with low power consumption.
⚡ Energy-Efficient LED Technology
High-brightness LEDs consume less than 5 Watts of power while delivering continuous 24/7 display operation — ideal for always-on monitoring without impacting energy budgets.
🔧 Simple Wall-Mount Installation
The AT-THMT-D-T is designed for fast deployment on walls, pillars, or near production line control points. No specialist installation tools required. Adjustable buttons on the right side of the display allow on-site calibration without accessing any control system.
🌐 Universal Power Supply: 100–240V AC
Compatible with power standards worldwide via included interchangeable plug adapters (US/EU/UK/AU). One SKU for global use.
Software Benefits:


Export the report to Excel and send notifications via email and SMS
View system data on PC
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AT-THMT-D-T |
| Overall Dimension | 450mm × 600mm × 50mm |
| LED Display | 14 digits, 4-inch high-brightness (Red default; Amber/Green/Blue optional) |
| Viewing Distance | Up to 60 meters |
| Temperature Range | -40°C to +125°C |
| Humidity Range | 0% to 100% RH |
| Temperature Accuracy | ±1°C |
| Humidity Accuracy | ±5% RH |
| Resolution | 0.1°C / 0.1% RH |
| Date/Time Display | Day / Month / Year |
| Sensor | SHT30 (SENSIRION EUROPE) |
| CPU | Microchip PIC 16F887 (USA) |
| Communication | RS485 Modbus RTU (optional add-on) |
| Power Supply | 100–240V AC, 50/60Hz (external 12VDC adapter) |
| Power Consumption | < 5 Watts |
| Mounting | Wall mount |
| Frame Material | Black aluminum alloy + 3mm Taiwan acrylic front panel |
| Protection Rating | IP50 (indoor use) |
| Operating Environment | -10°C to 50°C; 0–95% RH non-condensing |
| Net Weight | 1.3 kg |
| Gross Weight | 1.5 kg |
| Packaging Size | 500mm × 620mm × 70mm |
| Warranty | 15 months |

Primary Applications
The AT-THMT-D-T is deployed across a wide range of industries and environments where environmental visibility is essential:
| Industry / Application | How the AT-THMT-D-T Helps |
|---|---|
| Manufacturing Plants | Display real-time temperature and humidity on the factory floor; protect production quality in climate-sensitive processes |
| Cold Storage & Warehouses | Continuous visibility of storage conditions; support food safety and cold chain compliance |
| Pharmaceutical Facilities | Monitor temperature and humidity for drug storage compliance (GDP/GMP) with date-stamped visibility |
| Hospitals & Medical Facilities | Environmental control in operating rooms, pharmacies, labs, and storage areas |
| Greenhouses & Vertical Farms | Maintain optimal growing conditions; display real-time climate data to farm operators |
| Laboratories & Cleanrooms | Maintain and document strict environmental standards; integrate with data logging systems |
| Food Processing Plants | Monitor processing room conditions; support HACCP compliance with real-time display |
| HVAC & Building Management | Display climate conditions in server rooms, offices, and public buildings |
| Data Centers | Monitor temperature and humidity at the rack or room level; protect sensitive IT infrastructure |
| Textile & Printing Facilities | Control humidity-sensitive production processes to maintain product quality |
Communication & System Integration
The optional RS485 Modbus RTU port on the AT-THMT-D-T transforms it from a standalone display into a fully connected environmental monitoring node:
PLC Integration – Feed live temperature and humidity data directly to your Siemens, Allen-Bradley, Mitsubishi, or other Modbus-compatible PLC for process control and automation.
SCADA Integration – Display and log data in any SCADA platform. ATPro Corp also offers the proprietary ATSCADA software with native support for the AT-THMT-D-T, enabling dashboards, trend charts, and alarm management. The system can also be combined with the Industrial Temperature & Humidity Display to create a comprehensive environmental monitoring network across multiple locations.
BMS/HVAC Integration – Connect to your Building Management System for automatic climate control response based on real-time readings.
Data Loggers – Record historical temperature and humidity data over time for audit reports, compliance documentation, and performance analysis.
Smart Alerts – When paired with SCADA or BMS software, automatically trigger email, SMS, or relay output alerts when temperature or humidity exceeds defined safe thresholds.
OEM Support
ATPro Corp is a manufacturer with in-house R&D, not a reseller. We control production quality and supply from our facility in Vietnam and support global distributors with full OEM programs:
- Custom Branding – Your logo on product, frame, and packaging
- Private Label – Complete white-label configuration
- Custom LED Color – Red (default), Amber, Green, or Blue
- Custom Display Layout – Modify what parameters are displayed and how
- Custom Firmware – Adjust communication protocols, display behavior, or alarm outputs
- Stable Production Supply – Reliable capacity for high-volume and repeat orders
- Technical R&D Support – Direct access to our engineering team for integration projects
Why Choose ATPro Corp?
🏭 Manufacturer, Not a Trader The AT-THMT-D-T is designed, engineered, and manufactured entirely by ATPro Corp at our production facility in Vietnam. We control every step of the supply chain — from component sourcing to final assembly and QA testing.
🔬 In-House R&D Capability Our engineering team can customize hardware, firmware, display configuration, and communication protocols to match your exact requirements. We have delivered custom monitoring solutions for industries ranging from pharmaceuticals to heavy manufacturing.
📅 15+ Years of Industrial Expertise Since 2010, ATPro Corp has been a trusted supplier of industrial automation, SCADA software, environmental monitoring, and smart display solutions in internationally.
🔗 Complete Stack Integration Unlike display-only hardware suppliers, ATPro Corp understands the entire monitoring system — from sensor to cloud. We offer compatible SCADA software (ATSCADA), IoT gateways, PLCs, and remote monitoring platforms that integrate natively with the AT-THMT-D-T.
🌍 Proven International Supply We have supplied industrial monitoring equipment to factories, warehouses, hospitals, and automation system integrators across Southeast Asia, Europe, the Middle East, and beyond.
🤝 Long-Term Partnership Commitment We prioritize stable, long-term distributor relationships over one-off transactions. When you work with ATPro Corp, you gain access to technical documentation, engineering support, co-marketing materials, and dedicated after-sales service.
