12FOS & 22FOS SERIES
MULTI-CARTRIDGE HOUSINGS - 12FOS & 22FOS SERIES
Filter Housing
Price on quote · 4 business hours
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Brand
RKI Instruments
Industrial-grade equipment for environmental consultants, oil & gas, mining, manufacturing and labs. Quote-driven catalog — every unit ships with calibration certificates and bilingual technical support.
37 products
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RKI Instruments
4FOS and 5FOS Series
MULTI-CARTRIDGE HOUSINGS - 4FOS & 5FOS SERIES
Filter Housing
Price on quote · 4 business hours
RK-72-1004-03-CSA
OX-600 O2 Monitor
0–25.0% vol O2 | Resolution 0.1% | Accuracy ±0.7% vol | T90 response <30 s | Alarms 19.0% / 18.0% vol
Price on quote · 4 business hours
Monitor for Gases Produced by Digester Process
RKI Instruments Digester Gas Monitor
NEMA 4X enclosure | Up to 4 sensors: CH4 0–100% vol, CO2 0–50% vol, O2 0–25% vol, H2S 0–1000 ppm | 100 ft sample range | 4-20 mA + Modbus RTU output | 24"H x 24"W x 10"D
Price on quote · 4 business hours
RK-73-1021RK-01
RKI Instruments PS-2 Single Point Stand Alone Monitor
MOS sensor | 2 alarm levels (12A relay each) | 115 VAC / 24 VDC / 48 VDC | 35–120°F (2–49°C) | 0–100% RH
Price on quote · 4 business hours
Single / Dual Sensor Air Aspirator
RKI Instruments Single / Dual Sensor Air Aspirator
Sample draw up to 100 ft (1/4\" OD tube) | Compressed air: 10–140 PSI | Sample flow: 3 SCFH (1.5 LPM) | Enclosure: IP65 / NEMA 4X (SS or GRP) | Outputs: 4–20 mA, RS485 Modbus
Price on quote · 4 business hours
Wastewater Gas Monitoring system Explosion Proof Tri-Sensor Head
RKI Instruments Tri Head Gas Detector — Explosion Proof Wastewater Tri-Sensor Head
3 sensors, 1 explosion-proof housing | LEL 0–100% / O₂ 0–25% Vol / H₂S 0–100 ppm | Class I Div 1 Groups B,C,D | UL / CSA NRTL | -40 to 185°F operating (catalytic)
Price on quote · 4 business hours
RK-81-1197
RP-3R Clip-On Sample Drawing Pump
0.5 L/min flow (0.35 L/min ECO) | 1 AA alkaline battery | 10 hrs normal / 16 hrs ECO | 3.23″ W × 3.78″ H × 1.14″ D | ATEX/IECEx intrinsically safe
Price on quote · 4 business hours
S2 Series
S2 Series S2 SENSOR / TRANSMITTER
4-20 mA output | Explosion-proof Class I Div 1 Groups B,C,D | Operating temp -40°C to 75°C | Gases: LEL/O2/H2S/CO/CO2/toxics | 11-30 VDC operating voltage
Price on quote · 4 business hours
35-3001 Model
SAMPLE DRAW SENSOR / TRANSMITTER 35-3001 Model
24 VDC nominal (18.5–30 VDC) | NEMA 4X polycarbonate enclosure | Internal pump, 100 ft sample range | LEL / O2 / H2S / CO / CO2 / H2 sensor options | Optional 4-20 mA output | -20 to 50°C operating range
Price on quote · 4 business hours
SDM-03
SDM-03 DOCKING AND CALIBRATION STATION
12 VDC input (100–240 VAC AC adapter) | Operating -10°C to 40°C, ≤80% RH | Compatible: RKI 03 Series gas monitors | Max 200 records standalone / unlimited with PC | Up to 10 modules via USB (PC-controlled mode)
Price on quote · 4 business hours