Part Number - S-CIA-CM14

12-bit 4-20 mA Input Adapter Sensor

$105.00 USD
Interfaces with any sensor providing a 4-20 mA signal to connect to HOBO stations compatible with Smart Sensors.


Interfaces with any sensor providing a 4-20 mA signal to connect to HOBO stations compatible with Smart Sensors. This adapter features both a non-switched input and a battery-saving switched input that extends the life of external batteries. It also provides a trigger signal for controlling power to attached external sensors, while offering digital filtering that improves measurement accuracy with 32 readings/sample and 60 Hz noise rejection.


  • 12-bit resolution
  • Digital filtering improves measurement accuracy with 32 readings/sample; 4-20 mA adapter has 60 Hz noise rejection
  • Measurement averaging over logging interval further enhances accuracy
  • Plug-in modular connector for easy interface with HOBO stations
  • Screw terminal for connecting to sensors
  • HOBO RX3000 and U30 stations have room for two adapters
  • Use with HOBO USB Micro Station and HOBO MicroRX Station requires Smart Sensor Consolidator Box (S-ADAPT-6) and an extension cable.
  • Represents one data input channel


Measurement range: 4-20 mA (measures down to 0 mA to detect error condition)
Operating temperature range: -40° to 75°C (-40° to 167°F)
Accuracy: ±40 µA ±0.3% of reading (over operating temperature range)
Resolution: ±4.93 µA
Input impedance: 124 ohms (differential input)
Sensor trigger source: Voltage: 2.5 V ±2.4%; maximum current: 1 mA
Warm-up time: 300 ms ±3% (fixed)
Measurement time: 16.6 ms ±3% to filter out 60 Hz noise
Cable length: 14 cm (5.5 inch)

Compatible items

USB Data Loggers - requires external sensor(s)

$279.00 USD
$430.00 USD

Web-based Monitoring Systems - via remote communication

USB Data Loggers - w/external sensor(s)

$1849.00 USD

Extension Cables

$40.00 USD
$27.00 USD
$35.00 USD
$50.00 USD
$65.00 USD

Compliance Certificates

$30.00 USD


12-Bit 4-20 mA Input Adapter (S-CIA-CM14) User's Manual

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