Detector tube (Gastec) Formaldehyde 91LL 1 box

The concentration of various gases in the air can be easily measured using a direct reading method. Measurements can be performed using just one detector (pump) by simply changing the detector tube. Since it is a direct reading type, it is accurate and there are no individual differences. Concentration measurement is completed in 30 to 240 seconds for one stroke (100 ml). Detector tube name: 91LL Formaldehyde Quantity: 1 box (10 pieces) Number of measurements per box: 10 Expiration date (months): 12 (must be kept refrigerated) Measurement gas name: Formaldehyde Measurement range: 0.05 to 1.0 ppm Standard number of suctions (n): 5 *Please note that calibration may not be possible depending on the type of gas.