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in order to avoid contamination and improper readings
Add a reservoir
cleaning & restoring quartz
Digital display shows current CO2 levels 24/7
Dry Air Pressure Gauge, 0 – 600 psi ac-dehumidification-humidification in order to avoid contaminationZenport DPG600 Zen Tek Instruments 0 600 psi dry air pressure gauge is constructed of a 2. 5 inch diameter ABS case with 372 plastic window, 1 4 NPT brass bottom connection and brass internal mechanism. This quality gauge features grade A accuracy (1. 6%) and features a high visibility dial and number readout.
US$ 32.21
US$ 140.47
US$ 126.74
