Connect external sensors
CM550-21F lists eight analog inputs, SDI-12 and a rain-gauge interface. Select compatible level, liquid-level or environmental sensors and validate signal ranges.
CM550-21F →
CAIMORE03 / Hardware category
RTUs
Remote terminal units for field data acquisition, telemetry and control.
Acquire field signals. Control local outputs.
Go beyond telemetry
CM550-52 lists eight digital inputs, two PWM outputs and four relay outputs. Verify output ratings, interlocks and control logic with the ordered revision.
CM550-52X →Fit the monitoring system
CM550-21F lists remote parameter configuration, upgrade and restart. Confirm Modbus role, firmware and SCADA integration; sensors and dashboards are separate system elements.
CM550-21F technical specifications →Featured products
CM550-21F
Water & hydrological monitoring RTU
A remote terminal unit combining sensor acquisition, local data storage, remote control and communications for water and environmental monitoring projects.
- SDI-12 and rainfall sensor interfaces
- 8 analog inputs
- Remote configuration listed
CM550-52X
General-purpose cellular RTU
Integrated analog and digital acquisition, remote control and cellular communications for distributed monitoring installations. Interface and radio configuration must be matched to the selected variant.
- Analog and digital signal acquisition
- RS232 and RS485 interfaces
- Pulse counting
More models & series
Typical system connection
Local branch: an RTU control output connects through a correctly rated interface to field equipment. PWM and relay outputs are model-specific; field safety and actuator engineering remain project responsibilities.
Photos show equipment categories, not a delivered installation. Camera: Geezertd, public domain. Servers: Abigor, CC BY-SA 3.0, unmodified.
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