Visonic K9-40 Slimline Pet Immune PIR Motion Detector

Don't Let Your Pets Prevent You From Securing Your Home
  • Immunity for pets up to 40 pounds
  • One- or three-pulse count
  • 30 x 30 ft. coverage
  • Advanced RF protection up to 1GHz
  • Enhanced high & low temperature compensation



List Price: $22.99

Your Savings: $7.56

REWARDS: 15 points
  • Details
  • Specs
  • Reviews
  • What's Included
  • You don't have to sacrifice the security of your home because you own pets. With most ordinary motion detectors, a dog or cat can easy trip the sensor and cause a false alarm. With most cities cracking down on residential false alarms, you could face stiff fines, or be put on a "do not respond" list by local law enforcement.

    It Won't Confuse Your Pets for Burglars
    The Slimline Pet Immune PIR Motion Detector is an updated version of a motion sensor we've sold for years. This new model contains an advanced pet immune PIR detector element and lens system. Using TSI® (Target Specific Imaging) technology, the detector ensures immunity to pets weighing up to 40 pounds (18 kg).

    Reliable Operation
    The detector is also notable for its high stability, enhanced RFI protection (greater than 30 V/m), and high-temperature compensation for maximum "catch" performance and unique low-temperature compensation for optimum false-alarm rejection. The pyroelectric sensor is enclosed in a sealed chamber, protected from insects and air drafts.

    Adjustable Sensitivity
    For maximum flexibility, the sensor can be switched between one and three pulses. (A pulse is a detection by the PIR element.) This allows the sensor to be operated in a maximum sensitivity mode (one pulse) or is a less sensitivity mode (three pulse) where three specific detections are needed before the sensor signals the alarm panel that it has detected motion.

    Other Features
    Other features include a walk-test LED that allows to you to test the coverage area (the LED may be disabled during normal operation). A tamper detection circuit can be connected to your alarm panel to alert it in case anyone tries to open the sensor. Variable height adjustment allows the sensor to achieve maximum sensitivity when mounted on walls between 6 and 8 feet from the floor.

    Works with all hardwired alarm panels. Wires up as a normally-closed zone.

    The Slimline Pet Immune PIR Motion Detector can be directly screwed to the wall. However, if precise directional positioning is required, use these swivel brackets:

    • Swivel Wall Mount Bracket (#7481B1)
    • Corner Mount Wall Bracket (#7481B2)
    • Swivel Ceiling Mount Bracket (#7481B3)

  • Specifications

    Manufacturer: Visonic
    Manufacturer Product No.: K9-40
    Max. Coverage Range: 30 x 30 ft.
    Pet Immunity: Immune to animals weighing up to 40 lbs.
    Vertical Adjustment: 3-position adjustment scale:
    6 ft, 7 ft, 8 ft
    Voltage: 9-16VDC
    Current: 17 mA @ 12VDC
    Alarm Output: Normally closed (fail-safe)contacts. 18-ohm resistor in series with contacts. Rating - 0.1 Amps resistive/30VDC
    Tamper Output: 2-3 seconds
    Pulse Counter: 1 or 3 pulse operation
    LED: Walk-test enabled or disabled with internal link
    Detector: Dual-element low-noise pyroelectric sensor
    Mounting: Surface or corner (without brackets)
    Mounting Height: 6 to 8 ft.
    Operation Temperature: 14°F to 122°F
    Dimensions: 4.1"h x 2.4"w x1.3"d

  • Reviews 11 - 20 of 59

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    Review of 7481A Review by BRUCE
    Review of 7481A

    It works well and is unbelievably affordable. It does require a 12v.DC source and you do need to pay attention to the power polarity.

    Posted on 4/5/2011

    Review of 7481A Review by DAVID
    Review of 7481A

    East install, nice corner mount

    Posted on 2/5/2011

    Review of 7481A Review by JAMES
    Review of 7481A

    great product-timely shipping-easy hookup. thanks

    Posted on 12/23/2010

    Review of 7481A Review by ANTHONY
    Review of 7481A

    I can not use this item. I didn't know it requires a seperate 9-16 volt power supply.

    Posted on 7/25/2010

    Review of 7481A Review by GLENN
    Review of 7481A

    everything perfect

    Posted on 4/2/2010

    Review of 7481A Review by TOM
    Review of 7481A

    Nice PIR sensor, very straightfoward installation. Sensing range is very good.

    Posted on 1/16/2010

    Review of 7481A Review by WILLIAM
    Review of 7481A

    Used it to cover a small bedroom 12x12. Installed in corner near ceiling. No pets. Good motion detection. Good quality for the price. No look down.

    Posted on 11/18/2009

    Review of 7481A Review by CHRIS
    Review of 7481A

    Makes a little bit of a clicking sound when activated, and can go off multiple times within a few seconds. Detects well, works as designed.

    Posted on 10/1/2009

    Review of 7481A Review by Luis
    Review of 7481A

    They work great. I installed two of them inside my friend's three car garage. I have them in my home as well. Sensitivity is just right, picks up all movement in coverage area, except rottweiler's movement. I have been installing alarms for about 5 years now and never had a problem with these. Read instructions and take your time. Freelance alarm installer, retired NYPD Detective.

    Posted on 9/26/2009

    Review of 7481A Review by Doug
    Review of 7481A

    Sensors work well but the pet immune failed miserably with my 35 pound pit bull. Not one but all three detected the dogs movement at various heights and locations. Using both one and three pulse settings. I solved the problem by carefully apply black electrical tape covering the lense. By the time the sensors were working flawlessly without false pet detects I had the lense covered about 1/8 inch above center. This was applying the tape from the bottom of the lense up. This left the top of the lense open allowing human detection.

    Posted on 9/16/2009

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