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VH400 - Low-Cost Soil Moisture Sensors Quick view

Reference: VH400-2M

Brand: VEGETRONIX

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VH400 Soil Moisture Sensor Probe Specifications Power consumption: < 13mA Supply Voltage: 3.5V to 20 VDC. Dimensions See drawing. Power on to Output stable: 400 ms Output Impedance: 10K ohms Operational Temperature: -40ºC to 85ºC Accuracy at 25°C: 2% Output: 0 to 3V related to moisture content Shell Color: Red Voltage Output Curves: Curves, Piecewise...
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A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 52K measurements.  IMPORTANT INFORMATION Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1). HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
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U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem
  • U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem
  • U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem
  • U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem
  • U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem
  • U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem
  • U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem

U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem

U0141M

U0141M IoT Wireless Temperature Datalogger for 4 external probes, with built-in 2G modem

GSM Datalogger is designed to record temperature from four external Pt1000 probes. In case of exceeded set limits, SMS and JSON messages can be sent via GPRS data connection. Measured values can be sent to the internet storage COMET Cloud, which is a complete monitoring, alarm and analysis system.

It is also possible to set the regular sending of JSON messages to COMET Database, the sending interval is adjustable. Alarms are also indicated locally by LED, LCD and acoustically by built-in beeper.
The recording is performed in a non-volatile electronic memory. The data can be transferred to a PC via included USB-C cable.

The device includes Traceable calibration certificate with declared metrological traceability of etalons is based on requirements of EN ISO/IEC 17025 standard.

Quantity

Description

Included in delivery:

  • U0141M   
  • Instruction Manual  
  • Traceable Calibration Certificate  
  • Rechargeable Battery   
  • Power Supply   
  • USB-C Cable  
  • FREE FULL VERSION Analytical Software COMET Vision  
  • COMET Cloud for 3 Months

Technical data

Measured value

Temperature

TEMPERATURE SENSOR - external probe Pt1000

Measuring range -200 to +260 °C
Accuracy ±0.2°C; ±0,2 % of the measurement value in a range of +100 to +260 °C
Resolution 0.1 °C
Response time t90 of temperature measurement (temperature step 20°C, air flow approximately 1m/s) according to the connected probe


GSM MODEM PARAMETERS


Quad-band 850/900/1800/1900MHz
Compliant to GSM Phase2/2+
GPRS GPRS mobile station class B
Class 4 2W @ 850/900MHz
Class 1 1W @ 1800/1900MHz



GENERAL TECHNICAL DATA


  • Operating temperature: -20 to +60 °C
  • Channels: 4x external temperature probe
  • Memory: 500,000 values in noncyclic logging mode; 350,000 values in cyclic record mode
  • Recording interval to the internal memory adjustable: from 1 second to 24 hours
  • Recording interval to the COMET Cloud: from 5 minutes
  • Interval for measuring and evaluating alarms: adjustable 1 s, 10 s, 1 min
  • Recording mode noncyclic: data logging stops after filling the memory cyclic - after filling memory oldest data is overwritten by new
  • Real time clock: year, leap year, month, day, hour, minute, second
  • Power rechargeable: Li-Ion battery A8200, 3.6V/5200mAh
  • Protection class: IP67
  • Dimensions: 61 x 93 x 53 mm, with antenna 120 x 93 x 53 mm
  • Weight (including batteries): approx. 270 g
  • Warranty: 3 years
Product Details
U0141M
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