PID Detector 26 November 2019 by ION Science FirstCheck+ Series 4-Gas (O2, %LEL, CO & H2S) PLUS PID VOC Detection (10.6 eV Krypton PID Lamp). Category: Tanpa kategori Description Description ION Science FirstCheck+ Series 4-Gas (O2, %LEL, CO & H2S) PLUS PID VOC Detection (10.6 eV Krypton PID Lamp). Related products 4 in 1 Soil Tester ( Soil pH, Temparature, Light and Moisture Meter) Gas Detector Gas Detector Biological Compound MicroscopeRated 2.00 out of 5