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Wireless Ambient Oxygen Sensor
SKU#
WS433-O2
Replaced by
Replaced SKU
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 625bps 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...
For Applications
Ambient Air Quality Monitor, Indoor Air Quality Monitor, Gas Analyzing, Warehouse Monitoring
Reliable & Secured Wireless Connection
Sub-Ghz technology from Texas Instruments allows reliable wireless connection and secured data by AES-128
Not affected by other gases
Virtually no influence from CO2, CO, H2S, NO, H2 (Version O2-02)
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 temperature changes
Temperature compensation circuit included
| Measuring range/ Max overload | 0-25% O₂/ 30% O₂ |
| Accuracy/ Resolution | ±0.25% O₂/ 0.01 |
| Long term output drift | < 5% of reading per year |
| Interference gases for version O2-01 | CO₂, not used in the environment with CO₂ > 25% (1% of CO₂ will increase 0.3% of O₂ output) |
| Interference gases for version O2-02 | Virtually no influence from CO₂, CO, H₂S, NO, H₂. Only influenced by NO₂ (1% NO₂ will increase 0.6% of O₂ output) |
| Working Pressure | 1013hPa ±20% |
| Working Temperature | -10∼50℃ for O2-02 and -30∼50℃ for O2-01 |
| Storage Temperature | 0∼20℃ |
| Working Humidity | 0-99% 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℃ in normal air | approx. 3 years for WS433-O2-02 and 2 years for WS433-O2-01 |
| Transmission distance, LOS | 400m (2-meter height) |
| Antenna Type/ Frequency | Internal Antenna/ ISM 433MHz, Sub-GHz technology from Texas Instrument, USA |
| Battery | 01 x AA 1.5VDC, up to 10-year operation, depends on the configuration |
| Certificates | CE/EMC |
| Vietnam Type Approval Certification | QCVN 73:2013/BTTTT, QCVN 96:2015/BTTTT (DAVITEQ B00122019) |
| Operating temperature of Electronics | -40∼60℃ (with AA L91 Energizer®) |
| Housing | Poly-carbonate, IP67 |
| Installation method | L-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 |
Dimension
1/0
Application Notes
test
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