Specification:
Condition: Brand New
Item Type: Soil NPK Sensor
Material: ABS
Color: As shown in the picture
Length(not include cable): Approx.14cm/5.5in
Width: Approx.4cm/1.6in
Weight: Approx.203g/7.2oz
Measuring Range: 0‑1999mg/kg
Working Humidity: 5 to 95% (relative humidity), no condensation
Measurement Accuracy: ±2%F.s
Resolution: 1mg/kg (mg/l)
Baud Rate: 2400/4800/9600
Response Time (, seconds): less than 10
Communication Port: RS485
Working Temperature: 5 to 45 ° C
Power Supply: 12V‑24V DC
Class: IP68

Package List:
1 x Soil NPK Sensor

Note:
1. The steel needle must be inserted into the soil during the measurement.
2. Avoid strong sunlight directly on the sensor and cause the temperature to be too high. Use in the field to prevent thunderstrike .
3. Do not bend the steel needle. Do not pull the sensor wire. Do not drop or violently hit the sensor.
4. The sensor class IP68 can soak the sensor in the water.
5. Due to the exist of radio frequency electromagnetic radiation in the air, it is not suitable to be energized in the air for a long time.
6. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.