



3. LUTRON DO-5519E Air and Water Oxygen Concentration Meter
The LUTRON DO-5519E Air and Water Oxygen Concentration Meter features a compact design and a clear LCD display for easy, quick, and accurate measurement of oxygen concentration in both air and water. Widely applicable in areas such as aquaculture water quality monitoring, agriculture, environmental studies,...
Key Features:
- High precision with extremely sensitive sensor heads.
- Equipped with high-quality sensors, high accuracy, and unaffected by highly acidic gases like CO2, unlike many other models.
- The LUTRON DO-5519E Oxygen Concentration Meter is designed in a pen-shaped, highly convenient form for easy mobility and simple result reading.
- The device simultaneously displays both oxygen concentration in the air and measures the surrounding air temperature.
Specifications:
- DO range in water: 0 to 20.0 mg/L
- Resolution: 0.1 mg/L
- Accuracy ± 0.4 mg/L
- Oxygen in air: 0 to 100.0 %
- Resolution: 0.1 % O2
- Accuracy: ± 0.7% O2.
- Temperature range: 0 to 50 °C
- Resolution: 0.1 ℃
- Accuracy: ± 0.8 ℃/1.5 F
- Result display time: 1s
- Operating temperature: 0-50 °C
- Operating humidity <85% rh
- Battery: 006P DC 9V
- Display screen LC: 44 mm x 29 mm
- Device size: 135 x 60 x 33 mm
- Device weight: 446 g/0.98 LB.
- Auto power off when not in use
Reference price: from 6,720,000 - 10,080,000 VND
Buy link: https://hoachat.com.vn/may-do-nong-do-oxy-trong-khong-khi-trong-nuoc-do-5519e-lutron.html


4. SENKO SP2nd Oxygen Gas Detector
The SENKO SP2nd O2 Oxygen Gas Detector is a device designed to measure oxygen concentration in the ambient air to protect workers from hazards caused by oxygen deficiency or toxic gas poisoning. The Senko-SP2nd Oxygen Detector displays its concentration and alerts in case of increasing concentration risks.
Key Features:
- The device allows for measuring oxygen gas concentration in the air through electrochemical methods.
- This oxygen gas detector has a wide measuring range, allowing for accurate measurements with minimal error.
- The device is designed in a compact handheld form, suitable for carrying while on the move.
- The Senko-SP2nd is equipped with a display screen for easy reading and display.
Technical Specifications:
- Control Parameters: Front 2 switch (adjustment, maintenance, alarm setting)
- Display Operating Mode: Visual: LCD digital display, Trouble RedLED Audible: buzzer (90dB @ 10cm)
- Displayed Measurement Value: LCD screen (3 digits)
- Visual Alarm Display: alarm & status icon, Trouble RedLED
- Audible: buzzer
- Alarm Level Setting: Programmable within detection range, detection
- Operating Power Source: Lithium CR2 3V Battery
- Battery Life: CR2 Battery (3.0V): 1.2 years, with 8 hours daily use
- Materials: PC / TPE
- LCD Size: 27 (W) * 17.5 (H)
- Dimensions: 54 (W) X 91 (H) X 32 (D) mm
Reference Price: 4,549,600 VND (including tax)
Buy link: https://emin.vn/senkosp2ndo2-may-do-oxy-senko-sp2nd-o2-0-30-6149/pr.html


5. XP-3180 Cosmos Oxygen Gas Detector
The XP-3180 Gas Detector manufactured by Cosmos (Japan) is designed to measure oxygen gas concentration in the air using absorption type, displaying oxygen gas concentration in %vol. The XP-3180 samples air through a 1m long tube and has a measuring range from 0 – 25%vol. A filter is equipped on the tube to separate dust and water, enhancing the lifespan of the oxygen gas sensor in the device. It is worth noting that the oxygen concentration in the air is only from 0 – 21%vol, thus, XP-3180 is capable of measuring oxygen gas leakage outside the air.
As the device measures O2 concentration in the air, it is equipped with an explosion-proof structure Exibd II BT3 to avoid situations where measuring oxygen concentration leakage may cause fire or explosion within the device.
Key Features:
- Oxygen concentration index by extraction
- Convenient for measuring oxygen concentration in containers where sampling is difficult.
Applications:
- To check safety before working in underground construction sites, tanks, manholes, etc.,
- For the safety of construction workers.
Oxygen also causes many unwanted effects, especially when breathed in at high and prolonged concentrations. It inhibits the respiratory center, slows breathing, reduces airway diameter, increases blood CO2. Something to avoid in patients with chronic obstructive pulmonary disease (COPD).
Usage Notes:
- When using the device, pay attention to replace the filter regularly, do not use the device without the filter. Because dust will enter and adhere to the suction pump, causing the suction pump to clog and the measurement results to be inaccurate.
- In addition, without a filter, water vapor may come into contact with the sensor, making the sensor measurement inaccurate.
Technical Specifications:
- Gas type: OXYGEN(O2)
- Measurement principle: Galvanic cell
- Sampling method: Extraction (suction by pump).
- Measurement range: 0-25vol%
- Accuracy: ±0.3vol% (compliant with JIS T 8201 standard)
- Alarm level: 18% Vol.
- Concentration display: LCD screen with numeric display, scale display
- Alarm signal Gas alarm: Intermittent buzzer, flashing red light. Device error alarm: Continuous buzzer, flashing red light, bright display
- Explosion-proof design: Exibd II BT3.
- Power supply: 4xAA
- Alkaline dry battery
- Battery life: up to 100 hours with alkaline dry battery.
- Operating temperature: -10oC to 40oC
Reference Price: 47,630,000 VND (including tax)
Buy link: https://emin.vn/cosmosxp-3180-may-do-khi-o2-cosmos-xp-3180-0-25-vol-3614/pr.html


