Air Formaldehyde Concentration Detector

Air formaldehyde concentration detectors utilize electrochemical sensors. When air passes through, formaldehyde molecules undergo redox reactions at the electrodes, generating current signals. The concentration is calculated based on a calibration curve. These devices are used for rapid formaldehyde screening in indoor environments, furniture, building materials, and other locations. The detection range typically covers 0-10 ppm, with a response time of approximately 30 seconds.
Selection
When selecting, pay attention to the sensor type. Electrochemical sensors are more stable than semiconductor sensors. Check whether the detection range covers the commonly used interval of 0.01–1 mg/m³ and whether the resolution reaches 0.01 mg/m³. Ensure the instrument has a temperature compensation function, and the recommended calibration period should not exceed six months. For portable instruments, verify that the battery life exceeds 5 hours and the data storage capacity meets basic requirements.

Terms

Standards

Instruments

It can simultaneously detect 7 paraMeters such as PM2.5, formaldehyde, and TVOC, with an accuracy of +/- 10%. It is equipped with a 2.8-inch true color screen to display real-time trend charts, and supports 5000 data records and dual national standard selection.

$ 189.00

The stainless steel inner box is used to ensure non-adsorption formaldehyde, the background concentration is as low as 0.006mg/m ³ and the holding time is long; Temperature range 15-40 ℃ accuracy +/- 0.5 ℃, humidity range 30-80% RH accuracy +/- 3%; low failure rate, the average initial maintenance interval exceeds 3 years.

$ 11321.00

MCU chip to achieve low power operation, equipped with intelligent Sensor to ensure detection accuracy ≤ +/- 3% F. S, Response Time ≤ 30 seconds, support 4-20mA, RS485 and switching signal output, easy access to various industrial control systems.

$ 267.00

Adopt MCU chip to achieve low power consumption operation, detection error ≤ +/- 3% F. S, Response Time ≤ 30 seconds, support 4-20mA, RS485 and switch output, can be operated by remote control without opening the lid, with explosion-proof protection structure.

$ 590.00

Electrochemical sensor, formaldehyde detection range 0-20ppm, resolution 0.1ppm, with sound, light, vibration triple alarm, IP65 Protection Rating, built-in 1500mAh lithium battery can work continuously for 8 hours.

$ 235.00

Using electrochemistry detection principle, range 0~ 10ppm, with high definition color screen display and four Alarm modes, support wireless communication and remote monitoring, Protection Rating IP66, battery life up to 55 hours.

$ 566.00

Pump-suction Sampling method, detection accuracy ≤ +/- 3%, resolution of 0.01ppm, Response Time T90 ≤ 20 seconds, built-in large-capacity battery, support for multi-Sensor expansion, with IP65 Protection Rating.

$ 432.00

Using 32-bit microprocessor and 24-bit ADC chip, equipped with 2.4-inch high definition color screen, supports 1-6 Sensor configurations, with 4-20mA output and RS485 communication, Protection Rating IP65, suitable for harsh environments.

$ 451.00

Electrochemical sensor, Response Time less than 30 seconds, Measurement range 0~ 10ppm, with explosion-proof structure and 4-20mA standard signal output.

$ 267.00

Using industrial grade Sensor, Response Time is less than 30 seconds, accuracy +/- 3% FS, with explosion-proof and explosion-proof shell design, support 4-20mA and RS485 output, adapt to -10~ 40 ℃ working environment, ensure reliable monitoring of various gas concentrations.

$ 251.00

Adopt air jacket indirect temperature control to avoid condensation, dry moisture ratio control humidity Response fast, background concentration as low as formaldehyde ≤ 0.006mg/m ³, support automatic temperature control and humidity control and multiple safety protection, suitable for material environmental protection assessment.

$ 26699.00

Pump sampling ensures fast detection speed, large storage can record 100,000 pieces of data, with Intrinsic Safety (IS) certification and IP65 Protection Rating, support double alarm and automatic diagnosis function.

$ 588.00

High-precision Sensor is used to detect PM2.5 concentration, Response Time is instantaneous, Sensitivity can be adjusted to 5PPM, with sound and light alarm and automatic warm-up function, continuous work for 5 hours.

$ 157.00

Supports simultaneous detection of 4 gases and integrated temperature and humidity monitoring, adopts dual temperature and humidity compensation design, with a visual distance of 10 Meters, a variety of wireless communication options and remote configuration functions, Protection Rating IP66, operation temperature range -40~ 55 ℃.

$ 727.00

Platinum Sensor provides linearly stable measurement results, Conductivity Detector cell constant K = 10, Measurement range 0 to 200mS/cm, suitable for high Conductivity Detector liquid detection.

$ 106.00