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CO2 Responder
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CO2 Responder

Order Number: CO2-Responder
Discontinued (see BW ULTRA for new model)

Lead Time: Discontinued

  • Detection range of ((0-50,000 ppm CO2) 0-5% CO2).
  • Smaller and lighter than competitive instruments.
  • Water-resistant design in an integral concussion-proof enclosure.
  • Large LCD allows for easy-to-read monitoring.
  • Integral motorized pump for remote sampling and fast response.
  • AA battery powered (rechargeable battery pack optional).
  • 95 dB alarm tone, bright LED alarm bars, & internal vibrating alarm for noisy areas.
  • Auto backlight: activates in low light & when in alarm.
  • Four alarm levels: instantaneous Low Alarm, High Alarm, TWA and STEL.
  • Records TWA, STEL, and max exposures to gas & displays readings on command.
  • Datalogger with programmable sampling intervals.
  • Carrying case, and Norprene tubing hose included.
  • Includes options for CO, O2, & LEL sensors (call/email for details).


5.7 x 2.9 x 1.5 in. / 14.5 x 7.4 x 3.8 cm


13.1 oz. / 370 g


- Visual, vibrating, audible (95dB)
- Low, High, STEL, TWA, OL (over limit)


Sensor integrity, circuitry, battery and audible/visual alarms on activation, battery (continuous)


Integral motorized pump for remote sampling and fast response

User options

Confidence beep, Set STEL interval, set TWA method, Sensor on/off, Latching alarms, Safe display mode, Stealth mode, Set datalogger rate, Passcode protection, Set Datalogger Rate, Fast Pump, Automatic backlight, User-settable calibration gas level, Calibration due lockout, Language choices (5), Adjust clock

Detection Range
0-50,000ppm (50ppm increments) or 0-5% volume CO2
Warranty 1 year including sensors
Please review these other products:

CO2 Responder Replacement sensor (0-5%)

Order Number: BW-M5-CO2-RS
Replacement sensor for the CO2 Responder