Low Power Level Transmitter for Liquid Media

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Suitable for following applications:

  • Bore Hole Level
  • Liquid Tanks
  • Liquid Delivery Systems
  • Wastewater Tank
  • Flood Monitoring
  • Water Resources Level
# AS 923
# AU 915-928
# End Device
# EU 863-870
# Industrial IoT
# Outdoor
# US 902-928


Main Features:

  • Compatible with all LoRaWAN® frequencies
  • Wide range of industrial applications
  • High accuracy
  • Designed to meet outdoor applications
  • Long-term durable performance in harsh environment
  • Ultra-low power
  • Suitable for liquids compatible with SS and Hastelloy
2, 5, 10 (or other ranges up to 200) m H2O
0.25 (typ.) %Span
0.01 %Span
Pressure Reference:
Sealed Gauge (with Built-In Atmospheric Pressure Sensor)
Temperature Coefficient of Zero:
0.03 %FS/°C
Temperature Coefficient of Span:
0.03 %FS/°C
Long Term Stability (1 Year):
0.2 %Span
Overload Protection:
150 %FS
Load Cycles (Zero to Full Scale):
10+ Million
Storage/Operation Temperature:
-20 ~ +85 °C
Compensated Temperature:
0 ~ 60 °C
Power Supply:
Built-in Replaceable Lithium Battery, External Power
Rated Voltage:
Battery Lifetime:
50,000+ Readings and 10,000+ Transmission (More than 10 years for most applications)
Physical Specification
O-ring: Viton, Body: SS304, Diaphragm: SS316, Oil: Silicon, Enclosure: POM
Process Connection:
No Process Connection (or on request)
~1,300g (for 5m range)
Protection Rate:
IP68 and UV protected enclosure and sensor head
LoRaWAN Version, Class:
1.0.2revB, Class A (Class C on request)
LoRaWAN Activation Type:
OTA (default), ABP
Sampling Type:
Periodic (default), Event triggered
Sampling Period:
Configurable via downlink (default 4 hours)
Transmission Type:
Per sample (default), Event triggered, Conditional
Parameter Configuration:
Over-the-air via LoRaWAN® downlinks
Locally via wireless connectivity
Firmware Update:
Locally via wireless connectivity, Over The Air

Technical details

PLS3-L - Frequency Zone - Range - (customised options)

Note: Standard product comes with AU 915-928MHz, 5m range and external antenna

PLS3-L's Distributors

World's 1st Integrated LPWAN Pressure Measurement System