RKI FP-301 High-Sensitivity Paper Tape Gas Monitor Gas Type:High Sensitivity (Arsine 0-15 ppb / H2Se 0-200 ppb) It offers dual measurement ranges

It offers dual measurement ranges and is designed to be durable and field-ready

WL450 Product Page & Specifications (YSI / Global Water)

Silicone or LDPE tubing is coiled around a rigid PVC frame

45 LPM up to 100 feet away

or full four-gas configuration that matches your digester monitoring requirements — additional gas combinations and H2S ranges are available by quote

RKI FP-301 High-Sensitivity Paper Tape Gas Monitor Gas Type:High Sensitivity (Arsine 0-15 ppb / H2Se 0-200 ppb) It offers dual measurement rangesThe RKI FP 301 is a high sensitivity version of the FP 300 paper tape monitor, using a dedicated chemcassette tape tuned specifically for arsine and hydrogen selenide rather than a general purpose formulation giving roughly 10x finer resolution than the standard FP 300 arsine tape. A digital LCD reports concentration in ppb or ppm, and an internal sample pump feeds air continuously across the tape for real time monitoring. Latched common relay