MH-SFL Air Negative Oxygen Ion Detector

Product Overview:

The MH-SFL handheld air negative oxygen ion detector adopts high-precision sensors and metal shells, which can measure negative oxygen ions in real time PM2.5、 Temperature, humidity, and formaldehyde content. Compliant with international technical standards, all technical indicators have reached the forefront level. Adopting a cylindrical ion collection unit and an ultra-thin current signal processing unit, the ion charge conversion efficiency is high and the charge collection is stable. It has the characteristics of strong anti-interference ability, high testing accuracy, wide range, and strong environmental adaptability.

Working Principle:

The negative ion detector adopts a cylindrical air collector to actively collect negative ions in the atmosphere, with a stable airflow and a negative pressure dust removal structure to ensure long-term stable operation. Calculate air negative ions using I-V conversion. Air passes through the collection channel at a constant wind speed, and a negative voltage is applied to the voltage board to attract positive ions. Correspondingly, the collection board attracts negative ions, and after passing through the I-V conversion circuit, it undergoes analog-to-digital conversion in the form of voltage, and finally outputs the measured value.



Product Features:

The handheld negative oxygen ion detector with an all aluminum alloy shell has excellent electromagnetic shielding function and anti pollution characteristics.

◎ Adopting range automatic switching technology, the measurement range can be automatically switched according to the on-site environment to ensure measurement accuracy.

The built-in amplification circuit and filtering technology can detect the number of negative ions with high sensitivity, stability, and accuracy.

Small in size, easy to operate, reliable in performance, and convenient to carry.

Technical Specifications:

Measurement method: cylindrical electrode suction type

Measurement range: 0-100000 pieces/cm3, resolution of 10 pieces/cm3

Error: Reading ± 10%; Ionic mobility ≤ ± 20%;

Migration rate: 0.4-1.0 (cm2/V • sec);

Sampling frequency: 10 times/s

Power supply: Built in 3.7V 4000mAh lithium battery;

Working environment: Temperature: 0-70 ℃ Humidity: 0-90% RH;

Average power consumption: ≤ 1.2W;

Main body size: 170 * 120 * 46 (mm);

Protection level: IP41

Temperature: Range 0~99 ℃ Resolution 0.1 ℃ Accuracy ± 0.5 ℃

Humidity: Range 0~99% Resolution 0.1 Accuracy ± 3%

PM2.5: Range 0~500ug/m3 Resolution 1 ug/m3

Formaldehyde content: Range 0~1000ug/m3 Resolution 1 ug/m3 Error ＜ ± 5% FS

Application areas: It can be widely used in underground pipelines, environmental protection, meteorological stations, ships, docks, heavy machinery and cranes, ports, docks, cable cars, and any place where negative oxygen ions need to be measured.