Used to detect ammonia; range 0.25 to 3 ppm
NSN 5990-01-097-4721
NSN 6105-00-722-4932
NSN 6620-00-018-2196
NSN 5999-01-077-4370
NSN 6150-01-381-2278
NSN 5925-01-023-2481
NSN 5985-01-490-3027
NSN 5999-01-218-5840
NSN 5998-01-458-6502
NSN 6645-01-043-3179
NSN 5905-00-355-1615
NSN 5910-01-410-2850