RKI FP-300 Paper Tape Gas Monitor Aquatic research or as complete kits that

or as complete kits that arrive ready to measure with electrodes

orange electrode stacks

WQ-310 pH kit — 300-PH-2 pH sensor head (2 m cable) and 300-P-C pH cartridge

Why the flat sensor matters

RKI FP-300 Paper Tape Gas Monitor Aquatic research or as complete kits thatThe RKI FP 300 is a continuous paper tape gas monitor that uses photoelectric photometry against a plug in chemcassette tape to detect toxic gases at trace concentrations, with roughly one month of tape life before replacement and an onboard tape remaining display with end of tape warning. Latching or self resetting alarms drive yellow caution and red warning lamps, a buzzer, relay contacts, and a 4 20mA output. Available in gas specific tape versions