About: http://webisa.webdatacommons.org/36728419

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Signals heard generally are a pattern of ???clicks.??? As pictured, the PCB (2.65 by 2.95 inches) and parts fit in our plastic clam-shell case (L 4.38 W 2.95 H 1.0 inches), along with a 9V battery (not included).
http://www.w3.org/ns/prov#wasQuotedFrom	midnightscience.com