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August 31, 2026 8 min read
Manual for the SECO-LARM ENFORCER E-37EV Alarm Pager System — a 3-zone alarm pager with code-learning vibrating/audible receiver.
Manual for the SECO-LARM ENFORCER E-37EV Alarm Pager System — monitors up to three zones per premises or vehicle, plus manual paging, with a code-learning receiver.
The E-37EV is a sophisticated paging system consisting of two parts: a transmitter with trigger and timing circuitry, and a matching E-37RV receiver with both vibrating and audible paging functions. The pager alerts users when a protected building or vehicle is being vandalized or broken into, or when someone presses the manual paging button. The transmitter has a maximum output power of 4 watts as allowed by the FCC.
Mount the E-37EV inside the secure area. The transmitter sends a page signal when triggered, received by the small, highly sensitive, lightweight receiver, which beeps or vibrates while colored LEDs indicate the type of trigger event. Two 1.5V AAA batteries (not included) in the receiver last approximately one month at 5 transmissions/day. The receiver can learn page signals from up to 3 separate transmitters, and each transmitter can page an unlimited number of receivers.
Note: An antenna is required but not included — see antenna installation types below.
| Spec | Value |
|---|---|
| Number of codes | Over 2 million (factory pre-set) |
| Power | 12VDC |
| RF output power | 4W max. |
| Current drain (standby / active) | 10mA / 1A |
| Frequency | 27MHz |
| Antenna impedance | 50Ω |
| Range | Up to 1/2 mile in open air (varies with environment/installation/antenna) |
| Dimensions | 4-1/8" x 3-1/8" x 15/16" (105 x 79 x 33 mm) |
| Weight | 5.1 oz (145g) |
| Spec | Value |
|---|---|
| Number of codes | Learns up to 3 transmitter codes |
| Power | 3VDC (2 AAA batteries, not included) |
| Battery life | Approx. 1 month (based on 5 transmissions/day) |
| Current drain (standby / beep / vibrate) | 1mA / 20mA / 50mA |
| Dimensions | 3" x 2-1/8" x 5/8" (76 x 54 x 16 mm) |
| Weight | 1.6 oz (45g), without battery |
The E-37EV connects to one of four antenna types:
| Wire Color | Function |
|---|---|
| Red | Positive 12VDC power — connect to a constant +12VDC source. |
| Black | Ground — connect to the negative terminal of the 12VDC source, or optionally the vehicle frame. |
| Purple | Positive trigger input — connect to an alarm output that outputs +12V when triggered (trigger signal must be ≥1 second). |
| Green | Negative trigger input #1 — connect to an alarm output that outputs ground when triggered (≥1 second signal). |
| Blue | Negative trigger input #2 — connect to an alarm output that outputs ground when triggered (≥1 second signal). |
| White (long/short) | Fully automatic radio antenna — long white wire (female spade) to power antenna sensor wire; short white wire (male spade) to radio switched power lead. |
Warning: Do not reverse the white wire connections.
The receiver must learn the transmitter's code before it can receive signals. It can learn codes from up to 3 transmitters.
Note: The receiver remembers transmitter codes in EEPROM memory for over a year, even without power — it does not need to re-learn codes after battery replacement. Only one of each transmitter ID (color) may be learned at a time; learning a new transmitter of the same color overwrites the previous one.
| Transmitter ID | Input | Page LED | Zone LED | Audible/Vibrator |
|---|---|---|---|---|
| Green | Positive Trigger | Green | Green | Groups of 9 |
| Green | Negative Trigger #1 | Green | Red | Groups of 9 |
| Green | Negative Trigger #2 | Green | Orange | Groups of 9 |
| Green | Manual Page | Green | Green | 3 groups of 3 |
| Green | Power ON | Green | None | 3 groups of 3 |
| Red | Positive Trigger | Red | Green | Groups of 9 |
| Red | Negative Trigger #1 | Red | Red | Groups of 9 |
| Red | Negative Trigger #2 | Red | Orange | Groups of 9 |
| Red | Manual Page | Red | Green | 3 groups of 3 |
| Red | Power ON | Red | None | 3 groups of 3 |
| Orange | Positive Trigger | Orange | Green | Groups of 9 |
| Orange | Negative Trigger #1 | Orange | Red | Groups of 9 |
| Orange | Negative Trigger #2 | Orange | Orange | Groups of 9 |
| Orange | Manual Page | Orange | Green | 3 groups of 3 |
| Orange | Power ON | Orange | None | 3 groups of 3 |
Position 1: Beeping only. Position 2: Vibration only. ON: normal operation. OFF: Receiver off.
The transmitter transmits the page signal for a cycle of about 30 seconds, whether or not the triggered zone is reset. If the same zone remains triggered, the transmitter will not start a new transmission cycle — but a new cycle begins once another un-triggered zone is triggered.
When triggered by the manual page button, the receiver beeps (or vibrates) continuously for 1 minute in 3 groups of 3. The Page LED indicates which transmitter is sending the signal; the Zone LED flashes green. Press the ON/OFF button after 30 seconds to stop the indicator.
When the transmitter is connected to power, the receiver beeps (or vibrates) continuously for 1 minute in 3 groups of 3. The Page LED indicates the transmitter; the Zone LED remains blank. Press ON/OFF after 30 seconds to stop.
When triggered by the purple (+), green (-), or blue (-) trigger inputs, the receiver beeps (or vibrates) continuously for 1 minute in groups of 9. The Page LED indicates the transmitter; the Zone LED indicates which trigger fired: positive trigger (purple wire) flashes green, negative trigger #1 (green wire) flashes red, negative trigger #2 (blue wire) flashes orange. Press ON/OFF after 30 seconds to stop.
Scroll back through page signal memory by repeatedly pressing the ON/OFF button. The receiver remembers the last 6 page signals, shown most-recent first. It beeps once for an alarm page, but does not beep for a manual page. Three beeps indicate all signals have been viewed (or none are stored). Two consecutive identical signals are treated as one. Turning off the receiver erases all stored signals.
| Problem | Check |
|---|---|
| No page signal | Check all connections are secure; check the antenna is securely fastened; check receiver batteries; move antenna to a better position (possibly out of range); confirm antenna selection switch is in the correct position; confirm the transmitter has been properly learned. |
| Receiver only outputting vibrate/beep | Check that the receiver is in the correct alert mode. |
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC rules, designed to provide reasonable protection against harmful interference when operated in a commercial environment. Operation in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at their own expense.
This SECO-LARM product is warranted against defects in material and workmanship for one (1) year from the date of sale to the original customer. SECO-LARM's obligation is limited to repair or replacement of any defective part if the unit is returned, transportation prepaid, to SECO-LARM. The warranty is void if damage is caused by acts of God, physical/electrical misuse or abuse, neglect, repair or alteration, improper usage, or faulty installation. In no event shall SECO-LARM be liable for special, collateral, incidental, or consequential damages.
© 2012 SECO-LARM U.S.A., Inc. 16842 Millikan Avenue, Irvine, CA 92606. Tel: 800-662-0800 / 949-261-2999. www.seco-larm.com
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