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Minimax X4

Tough Durable Housing

• Small and lightweight

• Rugged, impact and weather resistant

• Includes crocodile clip - clips

anywhere to prevent accidental loss

Easy to Use

• Works straight out of the box

• Single button on/off operation

• Intuitive icons suitable for all languages

• User configurable via menu

• Interactive product training guide available

Ultra Clear Backlit Display

• Unique ‘flip display’ at the press of a button

• Continuous reading of gas levels

• TWA/STEL and two instantaneous alarm levels with peak hold facility

• Battery life, calibration and self-test status

Effective Gas Alarm Indication

• Alarm and backlight combine to demand attention

• Distinctive loud two-tone audible alarm

• Vibrating alarm supplied as standard

Reliable Operation

• Self-test on start up or on demand checks display, battery, sensor, audiovisual and vibrating alarms

• Uses patented SureCellTM sensor technology and ReflexTM cell check technique

• Includes TempraSURETM thermal compensation and shock protection

• Periodic flash and/or beep for increased confidence (user configurable)

Unsurpassed RFI Performance

• Can be used alongside walkie-talkies or cell phones

• Exceeds the toughest industrial standards for RFI immunity

Cost Effective

• Fully inclusive 2 year warranty

• Minimum 2 year sensor life

• Initial and on-going running costs minimized

• Available in 1, 2, 3 or 4 gas versions

Minimax X4 is an unsurpassed portable gas detector for protection against flammable, oxygen, carbon monoxide and hydrogen sulfide gas hazards. It’s ideal for use by those companies wanting advanced performance, reliability and ease of use without high costs of long term maintenance.

Minimax X4 focuses on ease of use by offering only the functionality required to comply with legislation. Everything that a user ROUTINELY HAS TO DO can be achieved with a single button press! Keeping it simple reduces training requirements and enables use in a wider range of industries.

Ease of use doesn’t mean basic functionality. For example, every instrument has the capability to log data using a simple to fit memory card (the type you get in a digital camera). Events, gas data and the calibration history are all stored and the free software downloaded from our web site enables you to graph or print reports at the press of a button.

Convenience and the way users want to work is an important consideration. When clipped to the belt or harness users may want the re-assurance of being able to view the display from different positions. But with many other units the display is upside down forcing the user to remove the unit to look at the display, perhaps creating a hazard. With the Minimax X4 users can ‘flip’ the display at the press of a button for that added convenience and safety.

With an ultra clear backlit display, vibrating and powerful audiovisual alarms, the Minimax X4 demands attention when gas hazards are detected in even the most adverse working conditions. All in all, Minimax X4 offers reliable, easy to use gas detection to keep you safe.

Standard Specification

General: R eusable multi-gas detector for personal protection against flammable, toxic and oxygen gas hazards. Supplied complete with calibration certificate, quick start guide, alkaline batteries (2), tubing, flow adaptor, crocodile clip, and manual.


Gases                            Detected Range   Level 1         Level 2            STEL            TWA

Flammable (Exp)             0 to 100% LEL*     10% LEL        20% LEL             n/a               n/a

Oxygen (O2 )                  0 to 30% vol         23.5% vol      19.5% vol            n/a              n/a

Carbon Monoxide (CO)     0 to 999 ppm        35 ppm          100 ppm          100 ppm        35 ppm

Hydrogen Sulfide (H2 S)   0 to 250 ppm        10 ppm          15 ppm             15 ppm        10 ppm

* Flammable channel can display gas concentration in %vol units for a range of flammable gases. # User configurable.


P atented Surecel TM electrochemical and catalytic bead sensing technology for stable and reliable performance in all industrial environments


Self-test of circuitry, battery, LCD, and sensors on start up or on demand. Patented Reflex TM cell check techniques included as standard for toxic channels.


ltra clear icon driven backlit LCDdisplays gas level and detector status. Unique ‘flipdisplay’ function at the press of a button for added user convenience. High/Low Peak hold facility included with user clear. Time and date

User Interface

Intuitive three button operation for detector configuration.

Audible Alarm

90 db @ 30 cm

Visual Alarm

High intensity red LEDs combined with red backlight for maximum effect.

Vibrating Alarm

Supplied as standard.

Operating Temperature

-20°C to +50°C (-4°F to +122°F). TempraSURETM temperature compensation.


5-95% RH (non-condensing)

IP Rating

Ingress protection to IP65.


N orthAmerica: Class I, Div 1, Groups A, B, C, DT4. Europe: ATEX II 2GEEx ia d IIC T4. (specific version only) Canada: certified to CSA C 22.2-152 and CSA C22.2


CE EN50270:1999 and EN55011.

Sensor Life

Minimum of 2 years backed by inclusive 2 year warranty

Battery Life

4-16 hours with 2 xAAAlkaline batteries. 12 hours of operation per charge, minimum, with rechargeable NiMHbatteries. Low power audiovisual warning.


124 mm(H) X 76 mm(W) X 36 mm(D)


210 g (without batteries), 258 g (with batteries)


2 years