| Product Name | Temperature and humidity recorder | Temperature and humidity recorder (with probe) | Temperature and humidity recorder (dual probe) |
| Product Model | DT-GPRS20 | DT-GPRS23 | DT-GPRS43 |
| Measurement range | Temperature: -40~100℃; Humidity range: 0%~100% | ||
| Measurement accuracy | Temperature: ±0.2~0.5℃; Humidity accuracy: ±3% | ||
| resolution | Temperature: 0.1℃; Humidity: 0.1%RH | ||
| Record capacity | 99864 groups | 99864 groups | Group 83886 |
| Recording interval | Divided into normal recording intervals and excessive recording intervals. (Intervals can be set directly via the instrument menu button from 30 seconds to 6 hours ) |
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| Refresh storage mode | Refreshes every 10 seconds Direct settings via instrument menu buttons |
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| Startup method | Manual button power on | ||
| Stop mode | Manual button shutdown | ||
| External power supply | A 12V/1A DC power supply can power the device and charge the battery. | ||
| Button Functions | Menu key: Long press to power on/off (must be operated from the main interface when powering off), short press to select menu items. Up and down keys: jump to different menu items. Back button: Returns to the previous menu (long press on the main screen to automatically search for Bluetooth printers to print stored data). |
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| Alarm methods | Buzzer audible and visual alarm, LCD alarm indicator (standard configuration) External audible and visual alarm, WeChat/SMS alarm (optional) |
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| Battery | 3.7V high-energy ( 3000mAh ) rechargeable battery, replaceable , with optional high-capacity batteries. | ||
| indicator lights | The red light illuminates when charging, and the green light illuminates when fully charged. | ||
| Communication interface | USB/GPRS/ Bluetooth | ||
| Casing color | White | ||
| Instrument size | 14.5mm * 90mm * 35mm | ||
| Random Attachments | Sensor, USB cable , DC power supply, instruction manual, certificate of conformity, warranty card, wall mount kit | ||
Malaysia