Sales & Support 1300 436 267
SPM Flex Front

SPM Flex

Whether you’re responding to an emergency, investigating a suspected leak, or performing routine tool maintenance, you can count on Honeywell Analytics’ SPM Flex for unmatched accuracy, intuitive operation, and flexible integration — even in challenging environments. This portable, single point Chemcassette® tape-based monitor detects the ultrasensitive gases inherent in your operations — including hydrides, mineral acids, oxidizers, and amines.

Check Sensor Specs for Available Gas Sensors

Contact Us for stock levels and order fulfillment

  • Features
  • Specifications
  • Sensor Specs
  • PDF Download


  • Visible at a distance with crisp, colorful LED bar on top of unit with flip screen
  • Remote viewing through the web
  • Stands up to harsh conditions
  • Duty cycle and k-factor multiplier options
  • Flexible uses throughout your plant
  • Easy to choose the target gas
  • Quick start-up for emergency response
  • Easy to use with protective equipment or hazmat gear
  • Data logging and information management for total confidence
  • Easy maintenance and long-lasting battery



Detection Technique

Chemcassette tape-based with advanced self monitoring optics design and K-factor multiplier options.

Duty cycle options to save paper.


Height: 33.6 cm; Width: 18.3 cm; Depth without handle: 16.3 cm; Depth with handle: 24.1 cm


4.1 kg

Mounting Screws

Concrete: 5/16 in x 2 in vibration-resistant stud anchor for concrete (McMaster-Carr 94475A185 or equivalent), add 0.25 in. to length when mounting bracket with sun shield.

Wood: 5/16 in. x 2 in. flange head lag screw for wood (McMaster-Carr 95526A375 or equivalent), add 0.25 in. to length when mounting bracket with sun shield.

Operating Temperature

0°C to 40°C for most gases/applications

Operating Humidity

0-100% RH for unit (Sample RH limited per tape/calibration). Sample line requires additional hardware to remove moisture in high RH conditions where condensing may occur. The sample must be non-condensing. Dry conditions may require humidification.

Flow System

Automatic flow control with bypass system, higher flow at inlet to reduce sample time (internal bypass system); sample up to 100 ft, check manual for specific gases.

Local Alarms/ Status

Visual: LEDs for alarm, normal condition, fault and external power.

Audible: User selectable: Off, Low ~75 dB at 1 m, Medium ~85 dB at 1 m, High >90 dB at 1


4 large buttons, 3.5 in. Color LCD TFT display, web server. Flip screen.

Data Logging

Rolling up to 3 months (15-22 sec. with no gas reading, 1-2 sec. when reading gas), Event history (1500 events – approx. 1 year).

Maximum Inlet/ Outlet Pressure Differential

The overall maximum load on the pump between the inlet and the exhaust should not exceed 10” WC (24.8 mbars or 2488 Pascales).


250V AC, 6 A maximum


2.0 or later.

Indoor/ Outdoor Use

Both (the power supply provided is indoor only)

Operating Altitudes

-1,000 to 3,000 ft. above sea level: standard; 3,000 ft. to 6,000 ft. above sea level: requires adjustment by Honeywell Analytics.

Ingress Protection Rating


External Switch or Circuit Breaker Requirement (Description & Location)

Meet or exceed all local codes and regulations.

Ventilation Requirements

Mount with no obstructions within 4 in. (10 cm) of either side or within 2 in. (5 cm) above and below the detector

Power Supply

Universal Line powered (90-260 VAC 50/60 Hz) for battery charger

Power Consumption

~1.9 A at 24 VDC +/- 10% (including battery-charging current).

Battery Type

Lithium ion

Battery Life

6+ hours under typical conditions – acts as battery back-up in fixed applications. Approximately 70% of its original capacity after 300 full charge/discharge cycles.

Power Adapter

Input: 90~264 VAC, 1.2A, 47-63 Hz.

Output: 24 VDC, 3.75 A max.

Wire Gauges

Minimum: 24; Maximum: 14. AWG for relay and 4-20 mA outputs.

Communication Options

Relays: Alarm 1, Alarm 2, Fault (user configurable for normally open/closed)


Ethernet (with Modbus TCP/IP and web server).

USB port (for memory stick configuration/data transfer).

Communications connector and optional communications cable: 60 V, 5 A maximum

Sensor Specs

Available Sensors

Gas Range
Arsine (AsH3) 0.5-500ppb
Phosphine (PH3) 3-3000 ppb
Diborane (B2H6) 5-1000 ppb
Silane (SiH4) 0.03 - 50 ppm
Germane (GeH4) 50-2000 ppb
Hydrogen Selenide (H2Se) 2-500 ppb
Hydrogen Sulphide (H2S) 0.001-9.999 ppm
Hydrogen Fluoride (HF) 0.02-20 ppm
Hydrogen Chloride (HCl) 0.02-20 ppm
Hydrogen Bromide (HBr) 0.02-10 ppm
Boron Trifluoride (BF3) 0.05-10 ppm
Nitric Acid (HNO3) 0.02-20 ppm
Sulfuric Acid (H2SO4) 5-750 ppb
Hydrogen Iodide (HI) 0.2-10 ppm
Chlorine (Cl2) 0.005-5 ppm
Chlorine (Cl2) 0.01-5 ppm
Fluorine (F2) 0.01-10 ppm
Nitrogen Dioxide (NO2) 0.03-10 ppm
Chlorine Dioxide (ClO2) 20-1000 ppb
Ammonia (NH3) 0.01-150 ppm
Dimethylamine (DMA, C2H7N) 0.5-50 ppm
Tetrakis (Dimethylamido) Titanium (TDMAT, C8H24N4Ti) 0.01-20 ppm
Trimethylamine (TMA, C3H9N) 0.03-50 ppm
Phosgene (COCl2) 2-2000 ppb
Ethylchloroformate (ECF, C3H5ClO2) 0.02-30 ppm
Methylchloroformate (MCF, C2H3ClO2) 0.03-30 ppm
Toluene Diisocyanate (TDI, C9H6N2O2) 0.5-200 ppb
Methylene Bisphenyl Isocyanate (MDI, C15H10N2O2) 0.5-200 ppb
Hexamethylene Diisocyanate (HDI, C8H12N2O2) 0.5-150 ppb
Hydrogenated Xylene Diisocyanate (H6XDI, C10H14N2O2) 0.5-150 ppb
Methylene bis-(4- cyclohexylisocyante) (HMDI, C15H22N2 O2) 0.5-100 ppb
Isophorone Diisocyanate (IPDI, C12H18N2 O2) 0.5-150 ppb
Xylene Diisocyanate (XDI, C10H8 N2 O2) 0.5-200 ppb
Hydrazine (N2H4) 3-1000 ppb
Monomethyl Hydrazine (MMH, CH6N2) 3-2000 ppb
Dimethyl Hydrazine (UDMH, C2H8N2) 3-2000 ppb
Hydrogen Cyanide (HCN) 0.2-30 ppm
Sulphur Dioxide (SO2) 10-2500 ppb
Ozone (O3) 20-1000 ppb
Hydrogen Peroxide (H2O2) 0.1-3 ppm

Enquire about SPM Flex