The DL50 series temperature and humidity recording instrument (with built-in sound and light alarms) is widely used in warehouse storage, food and drug safety storage, scientific research and production environment monitoring, chemical and pharmaceutical warehouse storage monitoring, HVAC, refrigeration and storage, meteorology and hydrology, papermaking, environmental protection, archives, experimental (testing) rooms, museums, electricity, tobacco and other fields.

| Record the sampling interval | The shortest interval is 1 second, which can be set in seconds, minutes, hours, or any other settings |
| Refresh storage mode | Real time mode, synchronous mode (power-saving) |
| Startup method | Immediate start, timed start, manual start |
| stop mode | Until full, first in, first out, number of stops, timed stop |
| alarm method | LCD screen prompt; The internal buzzer sounds an alarm; Flashing reminder, External sound and light alarm (B) SMS alarm (T) |
| Battery Model | 3.6V lithium battery |
| battery life | 1 year usage time (depending on refresh rate) |
| clock battery | CR2032 |
| external power supply | 12V DC AC adapter |
·Large screen LCD display, buttons, easy to operate.
·Equipment moisture resistance has extended the service life of equipment in cold storage and refrigerated truck verification
·The instrument casing comes with ventilation openings, ensuring accurate and reliable measurement parameters.
·Low power consumption, the recorder battery can record for more than a year after being fully charged for 1 minute
·The device comes with a built-in charging function.
·The data saved in the host after power failure will not be lost
·Computer configuration with multiple startup and shutdown modes:
1. Start immediately 2. Press the button to start 4. Start at a scheduled time
2. Press the button to stop. 2. Timer to stop. 3. Stop when full. 4. Stop recording the number of times
·Computer software has powerful data processing functions (statistics, analysis, display, query), which can form curve graphs of collected data for intuitive display,You can also view the data list. The collected data can also be stored as EXCEL or TXT spreadsheet files, or in software proprietary formats. Convenient for users to save and process data, print, etc., with free software upgrades.
| Product Name | Temperature and humidity recorder | Temperature and humidity recorder (with probe) | Temperature and humidity recorder (dual probe) | Temperature and humidity recorder (three probe) |
| Product Model | DL50TH | DL50ETH | DL50E2TH | DL50E3TH |
| measurement range | Temperature: -40~100 ℃; Humidity range: 0%~100% (customizable high temperature type up to 125 degrees) |
| measurement accuracy | Temperature: ± 0.5 ℃; Humidity accuracy: ± 3% |
| resolution | Temperature: 0.1 ℃; Humidity: 0.1% RH |
| Record capacity | 52000 sets | 52000 sets | 37000 sets | 29000 sets |
| Record interval | 1 second to 24 hours can be set arbitrarily, with a minimum recording interval of 1 second. In manual mode, the machine can be turned on and off infinitely to achieve segmented recording |
| Refresh storage mode | Normal mode, power-saving mode |
| Startup method | Immediate start, timed start, manual start |
Stop mode | Timed stop, full stop, key stop, stop by recording times |
| external power supply | 12V/200mA DC power supply and USB can both provide power to the device and charge the battery |
| Button Function | Key: Device startup and shutdown function (manual mode); Turn off display (other modes) |
| Alarm on | Alarm off: manually turn on or off the alarm |
| MAX/MIN key: query the maximum, minimum, and average values of the day (starting from 12:00 noon, customizable) |
| Return key: No function available at the moment |
| alarm method | Buzzer sound and light alarm, external sound and light alarm (optional), LCD alarm sign warning |
| battery | 3.6VHigh energy rechargeable battery, the device comes with a battery compartment for easy battery replacement
|
| indicator light | Charging red light on, fully charged green light on |
| communication interface | USB |
| Shell color | white |
| instrument size | 143*88*35mm |
| Randomly included | Sensor, USB cable, DC power supply, manual, certificate of conformity, warranty card, calibration certificate, wall kit |
| Application field | Pharmacy shaded area, warehouse, storage room, shaded warehouse | Cold storage, refrigerated truck, medical equipment cold storage, laboratory, agricultural research |
Place the temperature sensor in the environment that needs to be measured, and use the screws in the accessory package to hang the host in a position that can be seen by the human eye. The host will display the temperature changes in the measurement environment in real time.
Operation Method:
①. Connect the recorder to the USB port of a regular computer (PC586 or above) using the included communication cable.
②. Run the recorder application on the computer and set the recorder's recording start time, recording interval, stop time, stop mode, and other parameters.
③. After setting up, disconnect the recorder from the computer and place the recorder in the location to be tested.
④. After the detection is completed, connect the recorder to the computer, run the recorder application, and download the recorded data to the computer for data processing.