ESU 201

Environmental Sensor Unit
Device Description

ESU 101 is s cost-effective environmental sensor which is also equipped with Infra Red (IR) controller for split-type Air Conditioners. Thanks to its flexible design, ESU 101 has a learning mode which enables the device to be used with almost all split-type ACs. It has an RS-485 interface supporting Modbus/RTU protocol for SCADA applications.
  • Device Specifications
  • Technical Specifications
  • Input/Output
  • Power Measurement Specifications
Device Specifications
Nominal Supply VoltageUSB or 5VDC Power Jack or AAA Size battery
CPUARM Cortex-M4 32 Bit 64 Mhz
Flash512 kB
RAM64 kB
Watchdog TimerSystem Reset / 5 sec
Power Consumption0.04W 5VDC
Internal Temperature SensorTemperature Range: -20 to 120 °C
Internal Humidity SensorHumidity Range: 0 to 100% RH
Infrared Transmitter Output Power160mW
Internal Carbon Dioxide Sensor0-5000 ppm %3 Accuracy
Infrared Transmitter Output Wavelength940nm
Infrared Transmitter Carrier Frequency38kHz
Infrared Receiver Input Frequency38kHz
Bluetooth Specifications
Bluetooth ProtocolsBLE v5.0
Frequency Range2.4 GHz
RF CertificationSRRC, FCC, CE (RED), IC, NCC, KCC, TELEC (MIC)
Bluethooth MESH SupportYes

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