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RKI FP-40 Formaldehyde Monitor RKI Get Quote
 
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These highly sensitive portable gas detectors use photoelectric photometry method with colorimetric detection tab. The sample drawing rate is controlled by a microprocessor. The FP-40 has a direct readout of measurement value on an LCD display.

Technical Specifications

Detection Range 3 minute sample - 0 to 0.06 ppm (0.001 ppm/digit)
Detection Time 3 minutes (180 seconds)
Detection Principle Photoelectric photometry method
Detection Method Colorimetric tablet method (accumulating measurement)
Operating Conditions 5 to 35ºC (41 to 95ºF), below 90%RH
Power Source Four (4) AA Alkaline batteries
Operating Time 12 hours (with no alarm or backlight)