Wireless Ambient Oxygen Sensor

SKU: WS433-O2

WS433-O2 is the Wireless Ambient Oxygen Sensor, it utilizes a galvanic cell type oxygen sensor that provides a linear output voltage signal relative to the percent oxygen present in a particular atmosphere. The sensor features no position dependency, excellent chemical durability, and it is not influenced by CO. The wireless portion is Sub-GHz technology from Texas Instruments allows long-range transmission at ultra-low power consumption. It will connect 2-way wirelessly to the wireless coordinator WS433-CL to send data and receive the configuration. It can be configured the operation parameters like data sending interval, health check cycle...remotely from Globiots platform or via ModbusRTU software (thru the WS433-CL). Its default data rate is 50 kbps, can be switched to 625 bps to increase the communication range. It can last up to 10 years with a single AA battery.
There are a lot of applications as environment monitoring for office, hospital, cleanroom, agriculture, food warehouse...

Reliable & Secured Wireless Connection

  • Sub-Ghz technology from Texas Instruments allows reliable wireless connection and secured data by AES-128

10-year with a single battery

  • Ultra-low power sensing technology from Daviteq with Ultra-low power wireless technology fromTexas Instruments allow the sensor can last up to 10 years with a single battery AA.

Not affected by other gases

  • Virtually no influence from CO2, CO, H2S, NO, H2 (Version O2-02)

Not affected by temperature changes

  • Temperature compensation circuit included

High accuracy and stable

  • Good linearity
Measuring range / Max overload0-25% O2 / 30% O2
Accuracy / Resolution+/- 0.25% O2 / 0.01
Long term output drift< 5% of reading per year
Interference gases for version O2-01CO2, not used in the environment with CO2 > 25% (1% of CO2 will increase 0.3% of O2 output)
Interference gases for version O2-02Virtually no influence from CO2, CO, H2S, NO, H2. Only influenced by NO2 (1% NO2 will increase 0.6% of O2 output)
Working Pressure1013hPa ± 20%
Working Temperature-10 .. + 50 oC for O2-02 and -30 .. + 50 oC for O2-01
Storage Temperature0 - 20 oC
Working Humidity0-99%RH non-condensation for O2-02 and 5-95%, non-condensation for O2-01
Response time≤15s (Sensors should be used under conditions where the air exchange is greater than 200~300ml/minute)
Life expectancy at 20 ̊C in normal airapprox. 3 years for WS433-O2-02 and 2 years for WS433-O2-01
Transmission distance, LOS400m (2-meter height)
Antenna Type / FrequencyInternal Antenna / ISM 433Mhz, Sub-GHz technology from Texas Instrument, USA
Battery01 x AA 1.5VDC, up to 10-year operation, depends on the configuration
CertificatesCE/EMC
Vietnam Type Approval CertificationQCVN 73:2013/BTTTT, QCVN 96:2015/BTTTT (DAVITEQ B00122019)
Operating temperature of Electronics-40oC..+60oC (with AA L91 Energizer)
HousingPoly-carbonate, IP67
Installation methodL-type bracket SUS304 , by M4 screws or double-sided 3M tape (included)
Dimensions & weight Product / Package 125x30x30mm (wireless part only), < 50g (without battery) / 190x50x50mm, < 90g
ITEM CODEDESCRIPTIONS
WS433-O2-01WIRELESS OXYGEN GAS SENSOR, 433MHZ, 0-25%, FOR CO2 < 25%, AA 1.5 - 3.6VDC BATTERY, IP67
WS433-O2-02WIRELESS OXYGEN GAS SENSOR, 433MHZ, 0-25%, AA 1.5 - 3.6VDC BATTERY, IP67

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