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The DL-100TM485S, DL-100TM485PS, DL-100TM485S-W, and DL-100TM485PS-W are temperature and humidity data logger modules equipped with an RS-485 communication interface and an LCD display for viewing temperature, humidity, dew point, and module ID information. These modules can store up to 4088 temperature and humidity records in their internal memory.
They come with the DL Utility software, which supports installation, configuration, data retrieval, and visualization through detailed charts that can be exported to Excel.



| Data Logger | |
|---|---|
| Mode | Overwrite or stop logging when storage space is full |
| Time Interval | 10 seconds to 1 day |
| Overwrite Limitation | 1,000,000 cycles |
| Max. Records | 4088 temperature and humidity records |
| Display | |
|---|---|
| LCD Information Displayed | Temperature (°C and °F), Humidity (RH), Module ID |
| Temperature Measurement | |
|---|---|
| Range | -20 to +60 °C (-4 to +140 °F) |
| Resolution | 0.1 °C |
| Accuracy | Typical: ±0.3 °C |
| Precision | ±0.1 °C |
| Humidity Measurement | |
|---|---|
| Range | 0 to 100% RH |
| Resolution | 0.1% |
| Accuracy | Typical: ±1.8% RH @ 10 to 90% RH |
| Precision | ±0.1% |
| Dew Point | |
|---|---|
| Range | Calculated using temperature and relative humidity |
| Resolution | 0.1 °C |
| COM Ports | |
|---|---|
| Ports | 1 x RS-485, Non-isolated |
| Baud Rate | 1200 to 115200 bps |
| Data Format | (N, 8, 1) |
| Protocol | Modbus RTU |
| Power | |
|---|---|
| Input Range | +10 to +30 VDC |
| Consumption | 0.15 W |
| Mechanical | |
|---|---|
| Dimensions (mm) | 82 x 172 x 55 (W x L x H) |
| Installation | DIN-Rail; Wall mount |
| Ingress Protection Rating | IP66 |
| Cable Length | 380 mm |
| Environment | |
|---|---|
| Operating Temperature | -20 to +60 °C |
| Storage Temperature | -30 to +80 °C |
| Humidity | 5 to 95% RH, Non-condensing |
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