Certifications
Otis Instruments products have been tested and certified for safety and performance. Our gas detection products are aimed to protect you and your team in high risk situations. We are proud to be certified by QPS Evaluation Services.

LR1421-1R1 Certificate of Compliance - OI-2000 Sensor Housing
LR1421-2 Certificate of Compliance - OI-254 Sensor Housing
LR1421-3R1 Certificate of Compliance - OI-4000 Main Enclosure
LR1421-4 - Certificate of Compliance - OI-6000-IR-152-X-X-O and OI-6000-IR-152-X-R-O
LR1421-5 Certificate of Compliance - OI-5900, OI-6000 and OI-6900