AGREEMENT TO JOINTLY FILE SCHEDULE 13D

Exhibit 99.1

AGREEMENT
TO JOINTLY FILE SCHEDULE 13D

The undersigned hereby agree to jointly prepare and file with regulatory authorities a Schedule 13D and any future amendments thereto reporting each of the undersigned’s ownership of securities of Electro-Sensors, Inc. and hereby affirm that such Schedule 13D is being filed on behalf of each of the undersigned.

Dated: November 6, 0000	XXXXXX XXXXXX PARTNERS, L.P. BY: FARNAM STREET CAPITAL, INC., General Partner
	By:	/s/ Xxxxxxx X. Xxxxxxxx
		Xxxxxxx X. Xxxxxxxx,
		Chief Executive Officer
	By:	/s/ Xxxxx X. Xxxx
		Xxxxx X. Xxxx,
		President
	/s/ Xxxxxxx X. Xxxxxxxx
	Xxxxxxx X. Xxxxxxxx
	/s/ Xxxxx X. Xxxx
	Xxxxx X. Xxxx