Comparison : |
Item # Model 596DR1, Continuous Ethylene (C2H4) Alarm Monitor, 1 remote sensor Item # Model 596D, Continuous Ethylene (C2H4) Alarm Monitor, diffusion sensor Item # Model 596DR2, Continuous Ethylene (C2H4) Alarm Monitor, 2 remote sensors Item # Model 596P, Continuous Ethylene (C2H4) Alarm Monitor, built-in pump
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