Key Features: Loud 85dB at 1m Vivid LED alarms with top visibility Confidence blip, low battery and TWA warnings Timed data logging with 100-hour capacity Wide range of electrochemical oxygen and toxic gas sensors Interchangeable sensor modules Comprehensive data logging with sire and user names Triax casing will not crack or shatter when dropped Unique internal design will resist the harshest treatment Full buoyancy Simple windows software interface QuickCal rapid calibration

Key Features: Detects at up to 30ms distant - keeps operators out of harms way Detects at up to 100m with reflector - hard-to-reach areas at height or behind barriers can be monitored Green guide laser light - clear visibility of survey point, even in bright sun light Point and shoot technology - required little or no training and is easy to use Compact and lightweight - truly portable, can fit in a pocket Green guide laser light - clear visibility of where you are surveying even under strong sunlight Wide OLED display - clear and bright readout on screen No moving parts - little maintenance required Self-check and automatic calibration on start-up - ensures accurate and reliable readings; removes the need to return for regular calibration