5 each Handheld single gas monitor for toxic gases, equipped with a sensor calibrated to measure Carbon Dioxide display in ppm. • Must include wireless transmitter which is fully compatible with hazmat teams existing ProRae Systems Guardian MESH receivers. Monitor to Mesh Router ~ 660 feet (200 meters). Monitor to RAELink3 Mesh Mesh modems ~ 330 feet (100 meters) • Must have ability to swap out current Rae sensors to allow monitor to be used with other existing sensors. Must be plug and play with existing sensors. • The monitor shall be capable of storing the sensors calibration data even when sensor is swapped out • Must have a large display and backlighting for easy readability in chemical protective clothing • Must be water, dust, and shock-resistant • Must include rubber boot to protect monitor • Must be compatible with existing AutoRAE 2 (Fully automatic bump testing, calibration and charging) If non-native adapter required it must be included and validated for bump test and calibration. • Must be able to share sensors with existing MultiRAE instruments