ECRN-100 High-Resolution Rain Gauge metergroup.com/crops/products/ech2o-ecrn-100-high-resolution-rain-gauge High-resolution rain gauge with 0.2 mm (0.01 in.) resolution. Specifications Resolution Funnel Size 16.3 cm diameter Request a quote California requires the following notice WARNING: This product may contain chemicals including ethylene glycol, lead, nickel, styrene and cadmium, which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov