CM240 Leveling Base and Mount for Rain Gages


The CM240 is a mount to attach a rain gage to a pole or pipe and then to level the gage for accurate measurements. It mounts to the top of a pole or pipe, and then the rain gage is mounted on the CM240 and leveled with adjusting screws.

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Detailed Description

The CM240 may be attached to a CM300-series mounting pole, or to a user-supplied 1.5 IPS (1.9" OD, unthreaded) pipe. The pipe should be long enough to place the gage's orifice at a one-meter height. The pole or pipe can be placed directly into a concrete foundation, attached to a concrete foundation using j-bolts, or self-supported with legs. A concrete pad is recommended.

The rain bucket mounting hole bolt pattern is adjustable to these three diameters:

  • 23.24 cm (9.15 in.)
  • 24.44 cm (9.62 in.)
  • 25.6 cm (10.08 in.)


Dimensions 25.4 x 25.4 x 5.08 cm (10 x 10 x 2 in.)
Weight 793.79 g (1.75 lb)


Note: The following shows notable compatibility information. It is not a comprehensive list of all compatible or incompatible products.


Product Compatible Note
385-L (retired)

Frequently Asked Questions

Number of FAQs related to CM240: 2

  1. Unless the tipping bucket rain gage is going to go on the top of the mast, the CM240 is not designed for a tripod.

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