
DF-31/EC
SET SWITCH TO DELAYED 
FOR ENTRY/EXIT DOOR
SET SWITCH TO INSTANT 
FOR WINDOWS OR 
NON-ENTRY DOORS
MAGNET 
ON WINDOW
SENSOR 
ON FRAME
SENSOR 
ON FRAME
MAGNET 
ON DOOR
1/2" MINIMUM
MOUNT SENSOR 
PLATE TO FRAME
ALIGN MAGNET 
PLATE NEXT TO 
SENSOR PLATE 
AND ATTACH TO 
WINDOW
SPACE BELOW 
PLATE IS REQUIRED 
TO SNAP SENSOR 
ONTO PLATE
SNAP SENSOR ONTO 
MOUNTING PLATE
+
-
+
-
INSTALL TWO 
DURACELL 
TYPE DL 2032 
BATTERIES (+) 
SIDE UP
LIFT
WHEN CONSOLE INDICATES A SENSOR 
LOW BATTERY, OPEN SENSOR CASE AND 
GENTLY LIFT UP END OF BATTERY CLAMP, 
SLIDE BATTERIES OUT 
REMOVE BATTERIES 
FROM THIS END
NOTE: USE OF EXCESSIVE FORCE ON 
BATTERY CLAMP WILL RESULT IN DAMAGE
IF NECESSARY 
PUSH IN SLOT TO REMOVE 
SENSOR FROM MOUNTING PLATE
DOOR/WINDOW 
SENSOR
For Use with DF-16/EC 
Security Console
Installation 
Instructions
1. SENSOR & MAGNET DETAIL 2. SET SENSOR SWITCH 3. EX AMPLE SENSOR LOCATIONS
SENSOR HAS BUILT-IN SWITCH ON SIDE WITH NOTCH. 
MAGNET CAN ACTIVATE SWITCH UP TO 1/2" AWAY. 
WHEN MOUNTING SENSOR, ALIGN MAGNET TO NOTCH.
REMOVE PLASTIC BATTERY TAB 
PRIOR TO INSTALLATION BY 
PULLING STRAIGHT OUT
NOTCH ON 
SIDE OF 
SENSOR
ALIGN MAGNET 
NEXT TO NOTCH 
ON SENSOR
SENSOR
(760) 438-7000 • FAX (760) 438- 7043
www.linearcorp.com
MAGNET
1/2" SPACE 
MAXIMUM
4. PROGRAM SENSOR INTO CONSOLE 5. EX AMPLE SENSOR MOUNTING ON DOOR 6. EX AMPLE SENSOR MOUNTING ON WINDOW 7. OPTIONAL MAGNET SPACER
START IN
OFF MODE
ENTER YOUR
SECRET CODE
PRESS SENSOR 
OR MOVE MAGNET 
TO SEND SIGNAL
PRESS 
LEARN
UNUSED SENSOR
LEARN BUTTON
1
ENTER AN
NUMBER
HOLD OFF BUTTON 
FOR 3 SECONDS WHEN 
FINISHED TO EXIT 
LEARN MODE
8. TEST SENSOR 9. LABEL SENSORS 10. CHANGING BATTERIES INTERNATIONAL WARRANTY
SENSOR LIGHT 
SHOULD 
GLOW FOR 
TWO SECONDS
CONSOLE IN 
CHIME MODE 
SHOULD DING-DONG
SEND SIGNAL
FROM SENSOR
OPEN DOOR 
OR WINDOW
MOUNT SENSOR 
PLATE TO FRAME
1/2" MAXIMUM 
SPACE BETWEEN 
SENSOR AND 
MAGNET PLATES
SNAP SENSOR ONTO 
MOUNTING PLATE
STATUS INDICATOR 
SHOULD LIGHT 
WHEN SENSOR IS OPEN
1
Y 
C
N 
E 
G
R
E 
M 
E
USE LABELS PROVIDED 
TO IDENTIFY SENSORS
ALIGN MAGNET 
PLATE NEXT TO 
SENSOR PLATE 
AND ATTACH TO 
DOOR
Y 
C 
N
E
G 
E
R
M 
E
HOOK SPACER TO 
MAGNET PLATE 
AND ROTATE TO 
LOCK IN PLACE 
R&TTE VAEE 28357, EMC, SFT, ETS
Linear Corporation declares that the apparatus DF-31/EC 
complies with the essential requirements and other relevant 
provisions of Directive 1995/5/EC.
This Linear product is warranted against defects in material and workmanship for twelve (12) months. The 
Warranty Expiration Date is labeled on the product. This warranty extends only to wholesale customers who 
buy direct from Linear or through Linear’s normal distribution channels. Linear does not warrant this product  
to consumers. Consumers should inquire from their selling dealer as to the nature of the dealer’s warranty, if 
any. There are no obligations or liabilities on the part of Linear Corporation for consequential damages 
arising out of or in connection with use or performance of this product or other indirect damages with 
respect to loss of property, revenue, or profi t, or cost of removal, installation, or reinstallation. All implied 
warranties, including implied warranties for merchantability and implied warranties for fi tness, are valid only until 
Warranty Expiration Date as labeled on the product. This Linear Corporation Warranty is in lieu of all other 
warranties express or implied.
For warranty service on Linear equipment return product, at sender’s expense to: Linear Hong Kong 
19/F Hounor Industrial Centre,6 Sun Yip Street Chai Wan, Hong Kong Attention: Repairs Department
REPAIRS POLICY
Charges will be made for equipment that is not of warranty, shows customer abuse, or is damaged by the effects 
of lightning, water, fi re, or other abnormal happenings. 
Customer’s equipment sent in for repair may be repaired or replaced with new or remanufactured equipment 
at Linear’s discretion. 
The customer is always responsible for shipping and handling charges to the repairs facility. Linear will pay return 
shipping and handling charges on “in warranty” products shipped back to the customer. The customer will be 
billed for the return shipping and handling charges on “out of warranty” products. 
There will be a 50% expedite fee for any express requests. 
The International Sales Manager must be notifi ed prior to the retur n of product to Linear. All international returns 
must have an International Repair Authorization number (IRA#). The number must be marked on all packages. 
Failure to do so will cause delays in processing.
IMPORTANT !!!
Linear radio controls provide a reliable communications link and fi ll an important need in portable wireless 
signaling. However, there are some limitations which must be observed. 
The radios are required to comply with local rules and regulations as radio devices. As such, they have limited 
transmitter power and therefore limited range. 
A receiver cannot respond to more than one transmitted signal at a time and may be blocked by radio signals that 
occur on or near their operating frequencies, regardless of code settings. 
Changes or modifi cations to the device may void regulatory compliance. 
Infrequently used radio links should be tested regularly to protect against undetected interference or fault. 
A general knowledge of radio and its vagaries should be gained prior to acting as a wholesale distributor or 
dealer, and these facts should be communicated to the ultimate users.
Copyright © 2003 Linear Corporation  220837 A
USE SPACER WHEN 
SURFACES ARE 
UNEVEN