BACHARACH
Each, , , , , , , , , Refrigerants: 0 to 10,000 ppm, Ammonia: 25 to 10,000 ppm Carbon Dioxide: 300 to 8,000 ppm, Accuracy, ±1 ppm ±10% from 0-1000 ppm (refrigerants); ±10 ppm ±10% from 0-10,000 ppm (Ammonia); ±5 PPM ±5% from 300-1000 ppm (CO2), Resolution
$654.02