The Telaire T3000 series and T3022 harsh environment sensors were tested under extreme conditions to prove their durability and stability when installed in harsh applications. These conditions include exposure to marine, salt mist, and particles, O₂ levels up to 21% volume, 0 - 100% relative humidity, ammonium up to 200 mg/m³, SO₂ up to 0.5%, ethylene up to 500 ppm volume, and ozone.