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 Voltage USB or 5VDC Power Jack or AAA Size battery
CPU ARM Cortex-M4 32 Bit 64 Mhz
Flash 512 kB
RAM 64 kB
Watchdog Timer System Reset / 5 sec
Power Consumption 0.04W 5VDC
Internal Temperature Sensor Temperature Range: -20 to 120 °C
Internal Humidity Sensor Humidity Range: 0 to 100% RH
Infrared Transmitter Output Power 160mW
Internal Carbon Dioxide Sensor 0-5000 ppm %3 Accuracy
Infrared Transmitter Output Wavelength 940nm
Infrared Transmitter Carrier Frequency 38kHz
Infrared Receiver Input Frequency 38kHz
Bluetooth Specifications
Bluetooth Protocols BLE v5.0
Frequency Range 2.4 GHz
RF Certification SRRC, FCC, CE (RED), IC, NCC, KCC, TELEC (MIC)
Bluethooth MESH Support Yes

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