Snifit 50




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Handheld CO Monitor

  • Fast, accurate measurement of CO for peace of mind
  • Compact – fits in your shirt pocket
  • Simple operation and maintenance


The Snifit®50 is an easy-to-use compact personal detector ideal for HVAC contractors/technicians, home/safety inspectors and maintenance personnel who need to monitor carbon monoxide (CO). With simple one-button operation and a backlit display, the Snifit®50 can give you peace of mind when you enter any area that might contain CO.

The Snifit®50 responds quickly in the presence of CO, and is powered by a standard 9V battery. The sensor typically lasts 2+ years and is easy to calibrate for minimal maintenance. The Snifit® 50 comes with a 1 year warranty.


Measurement Range

0 to 2,000 ppm


1 ppm

Response Time (T90)

≤ 45 seconds


3.5 digit LCD with backlight


9V battery

Run Time

approximately 6 months with normal, intermittent usage

Size (H x W x D)

5.5 x 2.0 x 1.6 in. (139.7 x 50.8 x 40.6 mm)


4 oz (110 g) without battery

Operating Conditions

32 to 104 °F (0 to 40 °C), 10 to 90% RH (non-condensing), 1 ATM ± 10%

Warm-up Time

45 seconds (approximate)


CE mark


1 year