DL-100TM485P
High Accuracy IP66 Waterproof Remote Temperature and Humidity Data Logger with LCD Display and Modbus RTU / RS-485 Interface. Din Rail and Wall Mount. Supports operating temperature range of -20 ~ +60°C (-4F ~ 140F).
References & Support
Features

The DL-100TM485P is an industrial temperature and humidity data logger with IP66 waterproof case. Featuring high accuracy, wide measurement range, and large memory, it is widely used in applications like pharmaceutical transportation, greenhouse monitoring, energy management, building automation, etc. It communicates over RS-485 and has an LCD display to show temperatures (°C and °F), Humidity (RH), and Module ID. The data storage memory can store up to 4088 temperature and humidity records. It can be easily mounted on din rails and walls.
- Wide Measurement Range for Temperatures and Humidity:
- Temperatures: -20 ~ +60°C (-31 ~ +176°F)
- Humidity: 0 ~ 100% RH
- High Accuracy: +/-0.3°C (±1°F) ; +/-1.8% RH
- LCD Display Shows Temperature, Humidity and Module ID
- IP66 Waterproof, Durable for Industrial Applications
- Large Memory: Can Store up to 4088 Temperature and Humidity Records
- Communicates over RS-485 Interface
- Supports DCON Protocol
- Comes with Free Windows Utility, Data Logging Software, and Free Tech Support
- 10 ~ 30 VDC Power Input
- DIN Rail Mount and Wall Mount

Applications
- Pharmaceuticals Transportation
- Blood Stations, Pharmacies
- Food and Beverage Industry (HACCP Systems)
- Building Automation
- Energy Management
- Warehouses
- Museums, archives, galleries
Utility
The DL-100T485 temperature and humidity data logger comes with free utility for easy configuration, data retrieval and data display. The logged data can be shown in trends and charts and exported to Excel spreadsheet for further analysis. It can also be used with our free EZ Data Logger software for PC based monitoring and control systems.
Specifications
Temperature Sensor | |
Measuring Range | -20 ~ +60°C (-31°F ~ +176°F) |
Resolution | 0.1°C |
Accuracy | Typical: ±0.3°C; refer to figure 2 for details |
Precision | +/- 0.1°C |
Humidity Sensor | |
Measuring Range | 0 ~ 100% RH |
Resolution | 0.1% RH |
Accuracy | Typical: ±1.8% RH @ 10 ~ 90% RH; refer to figure 1 for details |
LCD Display | |
Displayed Information | Temperature (°C and °F), Humidity (RH), Module ID |
Data Logger | |
Time Interval | 10 seconds to 1 day |
Max. Records | 4088 temperature and humidity records |
Mode | Overwrite or stop logging when storage space is full |
Overwrite Limitation | 1,000,000 cycles |
Communication | |
Interface | RS-485; non-isolated |
Baudrate | 1200 ~ 115200 bps |
Data format | N,8,1 |
Protocol | Modbus RTU |
Max. Modules on same bus | 32 |
Power | |
Input Range | +10 ~ 30 VDC |
Power Consumption | 0.15 W |
Mechanical | |
Dimensions (W x L x H) | 82 mm x 126 mm x 55 mm |
Waterproof Level | IP66 |
Installation | DIN-Rail; Wall mount |
Environment | |
Operating Temperature | -20°C ~ +60°C (-4°F ~ +140°F) |
Storage Temperature | -30°C ~ +80°C (-22°F ~ +176°F) |
Ambient Relative Humidity | 5 ~ 95% RH, Non-condensing |
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Figure 1: Maximum RH-tolerance at 25°XC per sensor. |
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Figure 2: Maximum T-tolerance per sensor. |
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