The Extech VFM200 measures HCHO (formaldehyde) and TVOC (Total Volatile Organic Compounds).
The Extech VFM200 VOC/Formaldehyde Meter is a sturdy, handheld instrument that measures formaldehyde (CH2O) and total volatile organic compound (VOC) in air via a fuel cell sensor. Formaldehyde is measured from 0 to 5.00mg/m3 whilst the measurement range for VOC is 0 to 9.99mg/m3. Results for both substances can be given in ppm or mg/m3 to a resolution of just 0.01 and accuracy for each parameter is ±5% FS so the user can have confidence in these precise, reliable readings.
A response time of less than 2 seconds means that the Extech VFM200 can show real-time readings for both formaldehyde and VOC and these can be displayed simultaneously on the instrument’s backlit LCD screen. Adjustable high/low alarms can also be set by the user to provide immediate warnings when dangerous levels of either substance are detected.
Auto power off helps save the batteries which are rechargeable through a supplied universal adaptor with US, EU, UK and AU plugs as well as a useful soft pouch and instructions. The Extech VFM200 benefits from a 1-year manufacturer’s warranty and provides the user with consistent, precise readings to ensure safe or correct levels of formaldehyde and VOC in air.
Extech VFM200 VOC/Formaldehyde Meter Features:
- Fuel Cell Formaldehyde Sensor Technology
- High accuracy measurements
- Backlit LCD display
- Real‐time display of HCHO (formaldehyde) concentration in air
- Real‐ time display of TVOC (Total Volatile Organic Compounds) concentration in air
- Two unit selections (PPM, mg/m³) Audio‐visual High and Low Alarm
- Auto power off
Extech VFM200 VOC/Formaldehyde Meter Specifications:
- HCHO range: 0.00 to 5.00 mg/m3 (or PPM)
- HCHO resolution: 0.01mg/m3 (or PPM)
- HCHO basic accuracy: ±5% FS
- TVOC range: 0.00 to 9.99mg/m3 (or PPM)
- TVOC resolution: 0.01mg/m3 (or PPM)
- TVOC basic accuracy: ±5% FS
- Response time: ≤ 2 seconds
- Operating temperature: 0˚C to 40˚C
- Storage temperature: -10˚C to 60˚C
- Power supply: Rechargeable polymer lithium-ion battery (7.4V 1300mAh)
- Battery charge time: 3 hours with AC adapter
- Dimensions: 165mm x 60mm x 25mm
- Weight: 584g
SAFETY
- Do not store or use the instrument in an environment where there is corrosive gas
- Do not obstruct the sensors when in use
- Use only the supplied lithium‐ion battery to power the meter
- Use only the supplied AC adapter/battery charger to charge the lithium‐ion battery
MEASUREMENT REFERENCE TABLE
0.03 ppm Average outdoor level 0.10ppm Recommended upper limit for residences by ASHRAE, ANSI, EPA, NIOSH 0.40ppm Recommended upper limit for manufactured homes 0.50ppm OSHA workplace limit 0.75ppm OSHA TWA limit 0.80ppm Level at which most people first detect odor 2.00ppm OSAL STEL limit
VOC/Formaldehyde Meter Features
- Large backlit LCD display simultaneously displays four channels
- Selectable data sampling rate: 1, 2, 5, 10, 30, 60, 120, 300, 600, 1800, 3600 seconds
- Remote vibration sensor with magnetic adapter on 39″(1m) cable
- Wide frequency range of 10Hz to 1kHz
- Basic accuracy of ±(5% + 2 digits
- Data Hold, Auto Power Off
- Complete with 4 remote sensors, magnetic mounts, 8 x AA batteries, 100-240V Universal AC Adaptor, SD card, and durable hard carrying case