QIUSUO Wall-mounted NH3 Detector Ammonia Tester with L-Alarm 10ppm H-Alarm 20ppm Range 0-100ppm Resolution 1ppm Accuracy ≦ 5% F.S for Combustible and Toxic Gas Leakage Detection Test

QIUSUO NH3 Detector Wall-mounted Ammonia Monitor with L-alarm 20 ppm H-alarm 50 ppm Range 0-100ppm Resolution 1ppm Accuracy ≦ 5% F.S Advanced Micro-Power Technology Sensors ABS Material Waterproof

QIUSUO Fixed Ammonia Gas Leak Detector NH3 Detector with L-alarm 20ppm H-alarm 50ppm Range 0-100ppm Resolution 0.01ppm Precision＜5% F.S for Combustible and Toxic Gas Leakage Detection Test

QIUSUO NH3 Detection Fixed Ammonia Monitor with Resolution 0.01ppm Precision＜5% F.S L-alarm 20ppm H-alarm 50ppm Range 0-100ppm Advanced Micro-Power Technology Sensors ABS Material Waterproof