Soil moisture and temperature sensor RSMT3L/6L/9L
Sensor models RSMT3L, RSMT3L6L, RSMT9L differ in the length of the immersion trunk and, accordingly, in the number of depth levels measurement of soil parameters:
- RSMT3L: trunk length 30 cm, soil moisture and temperature at 3 depth levels 5/15/25 cm.
- RSMT6L: trunk length 60 cm, soil moisture and temperature at 6 depth levels 5/15/25/35/45/55 cm.
- RSMT9L: trunk length 90 cm, soil moisture and temperature at 9 depth levels 5/15/25/35/45/55/65/75/85 cm.
Other characteristics
All other characteristics for RSMT3L/6L/9L models are the same:
- Capacitive soil moisture measurement method and resistive temperature measurement method (RTD)
- Accuracy of soil moisture measurement ±2%
- Accuracy of soil temperature measurement ±0.5°C
- Possibility of changing the measurement depth within -2.5cm/+5cm
- Measurement of air temperature
- Control of the sensor's operational status
- Battery voltage control
- Wireless transmission distance - up to 10 km in conditions of direct visibility and absence of obstacles
- Compatibility with LoRaWAN™ class A
- Improved immunity compared to similar IoT LoRaWAN devices
- Low power consumption due to modern energy-efficient chips
- Battery life up to 5 years (under conditions: temperature +25°C, 20 measurements/day, tx power = 13 dBm, LoRa propagation factor SF=10)
- Encrypt-RFTM™ Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
