Refrigerated Truck Temperature Monitor

Refrigerated Truck Temperature Monitor can monitor and record the temperature and humidity in real time during the transportation of the cold chain.

[Refrigerated Truck Temperature Monitor detection principle]: Use digital temperature and humidity sensors, package the thermal resistor and humidity-sensitive capacitor into a small chip, use full-scale multi-stage calibration, and store the calibration data in the chip.

[Temperature and Humidity Sensor]: Imported sht30

[Material of the whole machine]: Polycarbon high-strength shell, the operation buttons are waterproof and dustproof, solid and reliable;

[Machine Appearance]: Humanized button design; exquisite appearance, showing grandeur;

[Complete machine size]: 122mm*102mm*36mm

[LED display]: With a display screen that supports Chinese menu display, 4-inch large screen display, real-time display of data, temperature and humidity alarm prompts, the instrument can be equipped with multi-channel temperature and humidity collection, and the number of channels can be customized according to the actual needs of customers;

[Password Protection]: The device buttons are equipped with password protection function to prevent non-administrators from tampering with parameters.

[Communication interface]: Built-in mobile communication module to upload data to the cloud platform, built-in SIM card, the SIM card has an industrial-grade SIM card, with high temperature resistance, anti-vibration, anti-electromagnetic interference, anti-moisture, anti-corrosion and other characteristics, which can be selected according to needs Equipped with 2G version and 4G version. The device uses the TCP/IP protocol stack and can configure device parameters through SMS commands.

[Installation method]: Wall-mounted hoist hole installation (spacing 77mm, rotation hole diameter 5mm) or buckle installation (spacing 170mm)

[Power supply method]:

①. 10-30vdc wide voltage power supply, the power plug is suitable for the power plug and the output is 5.5mm*2.1mm*11mm or 5.5mm*2.5mm*11mm DC round hole plug.

②, 10-30vdc wide voltage power supply, terminal power supply

③. Dual-circuit power supply design, the instrument has a built-in rechargeable lithium battery, which can still work normally in the event of a power outage, so you don't have to worry about the instrument not working properly during a power outage. The measurement process is convenient and there is no need to carry a power supply.

[Maximum power consumption]: 0.7W

[Default accuracy]: Humidity ±3%RH (60%RH, 25℃); Temperature ±0.5℃ (25℃);

[Transmitter circuit operating temperature]: -40℃~+60℃, 0%RH~80%RH

[Probe operating temperature]: -40℃~+120℃ Default: -40℃~+80℃

[Probe working humidity]: 0%RH-100%RH

[Temperature display resolution]: 0.1℃

[Humidity display resolution]: 0.1%RH

[Temperature and humidity refresh time]: 1s

[Long-term stability]: Humidity ≤1%RH/y; Temperature ≤0.1℃/y

[Response time]: Humidity ≤ 8s (1m/s wind speed); Temperature ≤ 25s (1m/s wind speed)

[Data upload interval]: configurable from 5s to 24h.

[Data recording interval]: The data saving interval can be set according to customer needs, 1min-60min can be set arbitrarily;

[Data recording frequency conversion function]: Once the temperature exceeds the standard, the monitoring system software will alarm synchronously, and the system will automatically switch to record data every 2 minutes (the frequency conversion interval can be set by yourself).

[Data re-transmission function]: In the event of network failure, the device has a data re-transmission function to ensure data integrity. It comes with a data storage function (memory ≥ 50,000 records). When the server goes down, the device can store the received real-time data on its own and automatically upload the stored data when the network recovers.

[Equipment management function]: Users can obtain equipment online and offline information through the management software platform. The software has scalable open functions to meet the needs of future project system expansion;

[Battery life]: When there is no power supply and data is uploaded every 20 seconds, it can last for more than 48 hours after the mains power is cut off.

【Alarm method】

①. Local alarm: Built-in buzzer alarm, alarm sound: ≥80dB, the buzzer can be turned off at any time by pressing the button, and an external sound and light alarm can be extended; SMS alarm and ring alarm for temperature and humidity exceeding the limit; mains power outage SMS alarm, ring alarm;

②. Cloud platform alarm: alarm pop-up window, SMS alarm, email alarm, WeChat alarm, alarm color reminder, audio alarm;

③. Local monitoring software alarm: alarm pop-up window, SMS alarm, voice alarm, email alarm, WeChat alarm, alarm color reminder, audio alarm;