Impact/Impact Pro Four Gas Monitor View larger

Impact Pro Four Gas Monitor


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Using high specification flammable, Oxygen and patented Surecell™ toxic sensors, Honeywell’s unique cartridge technology ensures safe, accurate and reliable measurements are always made.


Portable multi-gas monitor for the protection of personnel from up to four hazardous gases in the working environment.

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Daily Rental Price 60
Weekly Rental Price 240
Monthly Rental Price 620

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Available in two configurations, the impact and impact Pro accepts either disposable and/or serviceable cartridges respectively, all of which are pre-calibrated and can be replaced in under one minute, simplifying maintenance and minimizing cost wherever possible. Compact and rugged, these monitors are designed for tough working environments while being small, lightweight and unobtrusive, making them ideal for use in confined spaces where entry and exit may be difficult.

Gas checks prior to entering a confined space can be carried out using a drop line, hand aspirator or via an optional built-in pump (supplied as standard on the Impact Pro) that turns on and off automatically when the sampling tube is connected.

Ultra-bright alarm lights and a powerful audible alarm, coupled with a periodic green flash and bleep provide user confidence that monitoring is always in operation and alarms are never missed. For noisy environments a vibrating alarm is included as standard on the Impact Pro. A large, multi-lingual, backlit display, with intuitive menu system simplifies use and minimises operator training.

Available for use with a wide range of accessories including the unique Enforcer calibration system and compliance friendly Safelink communication system, the Impact range of portable multigas monitors is ready to protect you when most needed.


  • Four Gas sensors in one calibrated cartridge: LEL, O2, H2S, CO Others available: SO2, CI2, NO2, NH3, CO2
  • Construction: impact-resistant plastic, anti-static to En50014
  • Dimensions: 49 mm x 84mm x 136 mm (1.9” x 3.3” x 5.3”)
  • Weight: 520 gm (18 oz) including rechargeable battery and optional pump
  • IP Rating: Instrument IP67, cartridge IP54 (Instrument NEMA 4X, Cartridge NEMA 4)
  • Operating Temp: -20 ℃ to +55 ℃
  • Storage Temp: Instrument -40 ℃ to +80 ℃ Cartridge -10 ℃ to +30 ℃
  • Humidity Range: 20 – 90% RH Continuous
  • Audible Alarm: Periodic watchdog deep with alternative sounds for fault, gas alarm and warning .85 dB at 1 m, dual tone
  • Visual Alarm: Green confidence flash with rapid red flashing for fault, gas alarm and warning indication
  • Battery Performance: NiMH rechargeable, operating life >12 hours (Charging time 4 hours) w/pump >10 Hours; Dry cell disposable > 20 hours. Pumped >16 hours
  • Sample Pump: (Optional) 0.3 lpm over 20m (66’) using 4 mm (0.17”) internal diameter tubing; Safelink comfortable
  • Approvals: North America UL/CSA Ex ia Class 1 Div 1 Group A, B, C, D
  • EnviroMed Full Service Warranty

NOTE: This product is now discontinued. Please call one of our knowledgeable sales staff and they will help you find a suitable replacement for this product.