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MDU420 Dual-Range Methane Monitor Specification

Case
Type 304 Stainless Steel

Dimensions
4.75" x 2.75" x 2" (121 mm x 70 mm x 51 mm)

Weight
<30 oz (850 g)

Sensors
Non-Dispersive Infrared Absorption (NDIR)

Measuring Ranges
Methane (LEL Mode) – 0 to 100% LEL, 6 to 100% of volume Methane Methane (CH₄ Mode) – 0 to 100% of volume

Power Source (Run Time)
Rechargeable Ni-Cad Battery Pack (8 hours typical) Replaceable Lithium Battery Pack (10 hours typical) Replaceable 9-volt Alkaline Battery Pack (10 hours typical)

Temperature Range
-4^oF to 122^oF (-20^oC to 50^oC)

Humidity Range
0 to 100% RH when used with sampling probe and water trap filter

Approvals
UL – Class I, Groups C and D MSHA – Intrinsically safe for Methane/Air mixtures only