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<img width="220" height="220" alt="" decoding="async" data-srcset="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s.jpg 220w, https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s-100x100.jpg 100w, https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s-150x150.jpg 150w" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s.jpg" data-src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" data-sizes="(max-width: 220px) 100vw, 220px" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="220" height="220" src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading" alt="" decoding="async" srcset="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s.jpg 220w, https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s-100x100.jpg 100w, https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s-150x150.jpg 150w" sizes="(max-width: 220px) 100vw, 220px" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/h2s.jpg" />

Sensor, Hydrogen Sulfide (H2S) 0-200 ppm for GX-3R/GX-3R Pro/GasWatch 3

Sensor, H2S for GX-3R/GX-3R Pro

<img width="300" height="300" src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading" alt="" decoding="async" srcset="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/co-sensor.jpg 300w, https://www.bomarkinstruments.com/wp-content/uploads/2020/09/co-sensor-100x100.jpg 100w, https://www.bomarkinstruments.com/wp-content/uploads/2020/09/co-sensor-150x150.jpg 150w" sizes="(max-width: 300px) 100vw, 300px" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/co-sensor-300x300.jpg" />

Sensor, Carbon Monoxide (CO) 0-2000 ppm for GX-3R/GX-3R Pro/GasWatch 3

Sensor, CO for GX-3R/GX-3R Pro

<img width="300" height="300" alt="" decoding="async" data-srcset="https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-300x300.jpg 300w, https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-100x100.jpg 100w, https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-150x150.jpg 150w, https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO.jpg 600w" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-300x300.jpg" data-src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" data-sizes="(max-width: 300px) 100vw, 300px" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="300" height="300" src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading" alt="" decoding="async" srcset="https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-300x300.jpg 300w, https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-100x100.jpg 100w, https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-150x150.jpg 150w, https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO.jpg 600w" sizes="(max-width: 300px) 100vw, 300px" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2021/08/ES-1821-CO-300x300.jpg" />

Sensor, Carbon Monoxide (CO) 0-2000 ppm with H2 compensation for GX-3R/GX-3R Pro/GasWatch 3/04 Series

Sensor, CO with H2 compensated for GX-3R/GX-3R Pro

<img width="273" height="243" alt="H2S/CO Sensor" decoding="async" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/GX3R_DualSensor-1.png" data-src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="273" height="243" src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading" alt="H2S/CO Sensor" decoding="async" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/GX3R_DualSensor-1.png" />

H2S/CO Sensor

Sensor, H2S/CO combination, CO 0-2000 ppm, H2S 0-200 ppm for GX-3R / GX-3R Pro / GasWatch 3 / 04 Series

Sensor, H2S/CO combination for GX-3R/GX-3R Pro

<img width="277" height="254" alt="O2 Sensor" decoding="async" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/GX3R_O2Sensor-1.png" data-src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="277" height="254" src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading" alt="O2 Sensor" decoding="async" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/GX3R_O2Sensor-1.png" />

O2 Sensor

Sensor, Oxygen (O2) 0-25% vol for GX-3R/GX-3R Pro

Sensor, O2 for GX-3R/GX-3R Pro

<img width="282" height="238" alt="LEL Sensor" decoding="async" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/GX3R_LELSensor-1.png" data-src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading lazyload" src="data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==" /><noscript><img width="282" height="238" src="https://www.bomarkinstruments.com/wp-content/themes/mediacenter/assets/images/blank.gif" class="attachment-woocommerce_thumbnail size-woocommerce_thumbnail echo-lazy-loading" alt="LEL Sensor" decoding="async" data-echo="https://www.bomarkinstruments.com/wp-content/uploads/2020/09/GX3R_LELSensor-1.png" />

LEL Sensor

Sensor, LEL for GX-3R/GX-3R Pro

Sensor, LEL for GX-3R/GX-3R Pro

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