Brand: FORENSICS DETECTORS
Model: FD-90A-SO2
User Manual: Click Here
Features:
Details: A professional sulfur dioxide (SO2) detector by FORENSICS has all the advanced features and functions. Comes factory-calibrated with electrochemical sensors. The combustion of fossil fuels accounts for 75 – 85% of sulfur dioxide emissions. SO2 is also generated in multiple industrial activities, such as manufacturing hydrosulfites and other sulfur-containing chemicals; bleaching wood pulp and paper; processing, disinfecting, and bleaching food; waste and water treatment in metal and ore processes; and oil refining. SO2 has long been recognized as a major environmental air pollutant, with well-defined workplace risks. NIOSH recommends a 2 ppm exposure limit over 8 hours and OSHA recommends a 5 ppm exposure limit over 8 hours.
Included: SO2 gas detector, belt clip, sling, user manual, USB charging cable, calibration cover, and certified calibration certificate.
Calibration Options:
Calibration Service by Forensics Detectors
Calibration Tutorial (DIY)
Calibration Kit (DIY sold separately):
Calibration Gas (SO2)
Calibration Gas Regulator (C10)
Bump Gas (SO2)
Tubing
Other Accessories (sold separately):
Pump and Probe
Gas Detector Hard Case
Gas Detector Pouch
Gas Detector Stand
Gas Sensor Replacement (SO2)
Sulfur Dioxide (SO2) Detection: 0 – 20 ppm with 0.1 ppm resolution
Recommended Calibration Period: 12 months
Gas Sensor Type: Electrochemical Gas Sensor
Gas Sensor Life: 2 – 3 years
Error: ≤ ± 5% F.S
Response Time: < 30 sec
Indicators: LCD indicates the time, concentration, internal temperature, and battery level
Alarm: Indication of alarm, fault, and low voltage with LED, sound, and vibration
Store / Operating Temp: 0°F – 122°F
Store / Operating Humidity: <95%RH
Voltage: DC 3.7V Li-battery 1500 mAh
Working Time: > 24 hours
Charging Time: 3 hours
Explosion Rating: ATEX certified Ex ib IIC T4 Gb
Weight: 5 oz / 140 g (including battery)
Dimensions: 4.3 x 2.3 x 1.7 inches
Calibration Location (USA): Los Angeles, California, USA
Calibration Standard (USA): USA NIST Traceable Gas Source
Calibration Location (Europe): Athens, Greece
Calibration Standard (Europe): European NPL Traceable Gas Source





