The UNI 321 is a disposable or maintenance-free version of the UNI single gas detector. It detects hydrogen sulfide (H2S), carbon monoxide (CO) or oxygen (O2) in your selection of models with operating lives of 12 months (MP101), 24 months (MP102) or 36 months (MP103).
The detectors have a large LCD providing maximum readability in the field. Six bright red LEDs allow for quick alarm notification. Constructed of strong and durable material, the UNI 321 is designed to be comfortable yet drop-resistant. The UNI 321 detectors can easily be bump tested and calibrated with the CaliCase System.