RKI Instruments Replacement Sensor: IRR-0409 CO2 0-10% Volume PPM SensorSensor usable for the following meter types:GX-3R Pro RKI Replacement Sensor IRR-0409 For GX-3R ProSKU: IRR-0409$440.00PriceIRR-0409*Sensor, CO2, 0-10% volume for GX-3R ProQuantity*Add to Cart
