Trimmer, H. William,  1939- <br/><br/>
Understanding and servicing alarm systems / 
H. William Trimmer. 
 - Third Edition 
 - Boston ;  Oxford :  Butterworth-Heinemann,  c1999. 
 - xi, 255 pages :  illustrations ;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0750672064 (alk. paper) 
<br/><br/><label>LCCN: </label>99028235 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Burglar alarms--Maintenance and repair.<br/>Electric alarms--Maintenance and repair
<br/><br/><label>LC Class. No.: </label>TH9739  / TRI 
<br/><br/><label>Dewey Class. No.: </label>621.389/28