Sensors
- $280.00SKU: R-454C-Gas-50%-LEL
Macurco R-454C-Gas-50%-LEL 34L Refrigerant R-454C Male Calibration Cylinder
- Calibration Gas Cylinder
- 34 L Net Content
- Refrigerant R-454C Gas
$280.00Low Price Guarantee - $3.54SKU: SM-407-5TQ/W
Seco-Larm SM-407-5TQ/W 3/8" Screw-Terminal Recessed-Mount Magnetic Contact
- Used for protecting sliding doors and windows where space is limited
- Gold-plated terminals for longer expected life and reliability
- Screw terminals
- High-impact ABS plastic
- Miniature size for easier concealment
$3.54Low Price Guarantee - $77.62SKU: ISC-FPB1-W30DS
Bosch ISC-FPB1-W30DS Photoelectric Detector
- Dual beam detection improves false alarm immunity
- Range up to 90 m (300 ft) outdoors, 180 m (600 ft) indoors
- Selectable response time
- Small unobtrusive design
$77.62Low Price Guarantee - $179.31SKU: CLIP-MCW
Visonic CLIP-MCW CLIP-MCW Powercode Wireless Solid Curtain PIR
- Ultimate false alarm elimination via patented TMR algorithm
- 3-volt long-life high power standard lithium battery
- Attractive, sleek design suitable for any home or office
- Several optional frequencies available in compliance with international standards
- Clip MCW T model is offered with back tamper
$179.31Low Price Guarantee - $97.78SKU: SPY-4
Visonic SPY-4 PIR Motion Detector Curtain
- Virtually unnoticeable after mounting
- Designed for securing corridors, doors, windows or skylights
- Ideal for controlling CCTV, access control and other systems
- Ceiling or wall mounting
- Tiny size: Diameter: 19 mm (0.75 in) Length: 70 mm (2.75 in)
$97.78Low Price Guarantee - $121.00SKU: HS-L1.5-121
Magnasphere HS-L1.5-121 Surface Mount, Dual Alarm Contact
- Tested to 9th edition UL 634 Level 1 high security (both in-swing and out-swing doors)
- Made with Magnasphere switch technology
- Single and Dual alarm contacts
- No adjustment required for installation
- No brackets needed for most out-swing door installations
$121.00Low Price Guarantee - $4.13SKU: N25WGB-ST
Nascom N25WGB-ST Mini Stick on Switch / Magnet Set W1/4" x H1/4" x L1-1/4", End Wire Leads, Brown
- 12" 22AWG Wire Leads
- Encapsulated Hermetically Sealed Contacts
- Wide Gap - N35 NdFeB Rare Earth Magnet
- 3M VHB (Very High Bond) Double Sided Tape
- ABS Housings
$4.13Low Price Guarantee - $4.58SKU: SM-4105-LQ/W
Seco-Larm SM-4105-LQ/W 3/4" Steel Door Recessed-Mount Magnetic Contact Switch, White
- Used for steel framed doors and windows where space is limited or to avoid unsightly installations
- Strong one-piece construction
- 18" (46cm) wire leads
- High-impact ABS plastic
- Switch and magnet have ribs for securing in holes
$4.58Low Price Guarantee - was $322.00 Special Price $317.00SKU: FM141
Linear FM141 150 Feet Vehicle Sensor Exit Wand
- Electromagnetic sensor detects vehicles-in-motion
- Compatible with all automatic gate operators, or other systems requiring a dry contact input device
- Wide input voltage range (8-26 V AC or 11-30 V DC)
- Ideal for solar application, 1.5 mA current consumption
- Relay latch time of 2 seconds. May not be used as a safety device
was $322.00 Special Price $317.00Low Price Guarantee - $103.00SKU: ISC-FPB1-W90DS
Bosch ISC-FPB1-W90DS Photoelectric Detector
- Dual beam detection improves false alarm immunity
- Range up to 90 m (300 ft) outdoors, 180 m (600 ft) indoors
- Selectable response time
- Small unobtrusive design
$103.00Low Price Guarantee - $54.90SKU: BO-60-499-11-319.5
Bosch BO-60-499-11-319.5 Slim Line Door & Window Sensor, Brown
- Flat design
- Fits in most small areas
- Replaceable battery
$54.90Low Price Guarantee - $2,007.50SKU: NEXUS
Comelit NEXUS Face Recognition Panel with 8" Touch-Screen LCD
- 8 inch LCD screen
- 2MP Binocular lens, f = 3.97mm @ F1.6
- High precision body temperature measurement ± 0.3 ° C
- Camera with integrated DVA (Deep Video Analysis) algorithm for facial recognition
- Facial recognition at a distance up to 2.2m
$2,007.50Low Price Guarantee - $28.00SKU: BP33-A
United Security Products BP33-A Mini OHD Contact with Adjustable Magnet - 2.25" Gap
- Extra wide 2.25" gap
- Rugged aluminum construction
- Miniature 3.5" x 1.5" size
- Premium rhodium metal contacts
- Alnico 5 magnets
$28.00Low Price Guarantee - $343.20SKU: SL-200QDM
Optex SL-200QDM Smart Line Outdoor Photoelectric Detector, 200ft
- High power Quad beams with high grade aspherical lenses
- 60m detection range
- 4 channel selectable frequency
- IP65 water protection rating
- Anti-frost hood design
$343.20Low Price Guarantee - $99.31SKU: ISC-PPR1-WA16G
Radionix by Bosch ISC-PPR1-WA16G 60' Professional Series PIR w/Multi-Point Antimask
- 16 m x 21 m (50 ft x 70 ft) standard coverage; 8 m x 10 m (25 ft x 33 ft) selectable short range coverage
- EN50131-2-2 Grade 3 compliant
- Sensor data fusion technology
- Tri-focus optics technology
- MANTIS anti-mask
$99.31Low Price Guarantee - $56.07SKU: MSS-312C-GRAY-FIRE
Magnasphere MSS-312C-GRAY-FIRE 1" Recessed with 3 Switches, 2 Closed Loop, 1 Open Loop - Gray - Fire Rated
Magnasphere MSS-312C-GRAY-FIRE 1" Recessed with 3 Switches, 2 Closed Loop, 1 Open Loop - Gray - Fire Rated$56.07Low Price Guarantee - $34.44SKU: N505AUTM-ST
Nascom N505AUTM-ST 2-1/4" Overhead Door Rail Mount Magnet / Switch Set Featuring No Dead Spot Technology, Silver
- No Dead Spot Technology
- Extruded Anodized (Type II) Aluminum
- Quick Switch Install - Less than 60 seconds
- Flip the Switch - Gap is not Impacted By Cable Direction
- Universal Mount
$34.44Low Price Guarantee - $105.95SKU: GEM-SMK
Napco GEM-SMK Wireless Smoke Detector
- Long 5-year battery life, typ. (batteries included)
- Compact 5.2 inch diameter; attractive decorator white
- Built-in silence feature and test button
- Visual LED indicates alarm & standby
- Audible/visual indicator for low battery and need for detector cleaning
$105.95Low Price Guarantee - $224.99SKU: FM139
Linear FM139 50' Vehicle Sensor Exit Wand
- Electromagnetic sensor detects vehicles-in-motion
- Compatible with all automatic gate operators, or other systems requiring a dry contact input device
- Wide input voltage range (8-26 V AC or 11-30 V DC)
- Ideal for solar application, 1.5 mA current consumption
- Relay latch time of 2 seconds. May not be used as a safety device
$224.99Low Price Guarantee - $88.75SKU: MSS-19CL-W
Magnasphere MSS-19CL-W 3/4" Recessed / Concealed Contact Open Loop, White, 10 Pack
- Made with Magnasphere Switch Technology
- Won™t break
- Resistant to contact welding
- Resistant to outside defeat
- Universal mounting
$88.75Low Price Guarantee - $42.56SKU: CS-PD422-PQ
Seco-Larm CS-PD422-PQ Infrared Proximity Sensor, 22mm, Stainless Steel
- No-touch operation reduces the risk of spread of germs, viruses, etc., through cross-contamination
- Adjustable sensor range up to 6" (15cm) 1A relay, adjustable trigger duration 0.5~20 seconds or toggle
- Selectable LED colors (turns from red to green or green to red) to show if the sensor is activated
- Weather-resistant (IP65*) for outdoor use
$42.56Low Price Guarantee - was $106.95 Special Price $72.00SKU: SD-9773-KNEVQ
Seco-Larm SD-9773-KNEVQ Outdoor Wave-to-Open Sensors, Surface-Mount
- Outdoor Wave-to-Open Sensors
- Surface-Mount
was $106.95 Special Price $72.00Low Price Guarantee - $51.25SKU: 901
United Security Products 901 Sealed Pressure Mat - 9" X 15"
- R. F. Thermo Sealed
- Molded Waterproof Construction
- High Traffic Area Design
- Indoor/Outdoor Applications
- Six Standard Sizes
$51.25Low Price Guarantee - $16.50SKU: MSS-K22-W
Magnasphere MSS-K22-W Surface Mount Contact Open Loop with Terminals, White
- Made with Magnasphere Switch Technology
- Won't break
- Resistant to contact welding
- Resistant to outside defeat
- Universal mounting
$16.50Low Price Guarantee - $11.68SKU: N1178CB-STFB
Nascom N1178CB-STFB Recessed 3/4" Stubby Open Loop Switch / Magnet Set for Steel / Wood Doors, Wire Leads, Brown
- Snap Fit on Steel - No Glue Required
- Encapsulated Hermetically Sealed Contacts
- 12" 22AWG Wire Leads
- Polypropylene Housings
- Wide Gap - N35 NdFeB Rare Earth Magnet
$11.68Low Price Guarantee - $903.00SKU: CX-6
Macurco CX-6 CO/NO2 Low Voltage Fixed Gas Detector and Controller, Grey
- Easy installation to 4x4 electrical boxes via mud plate
- 4-20mA output to control VFD's and send to BMS
- LED display to easily show gas concentrations
- End of life notification
- Field calibration kits available
$903.00Low Price Guarantee - $280.00SKU: R-454B-Gas-1000-PPM
Macurco R-454B-Gas-1000-PPM Refrigerant Calibration Gas Cylinder 34L 50% LEL R-454B (M)
- R-454B refrigerant calibration gas
- 50% LEL concentration for reliable testing
- 34-liter gas cylinder
- Ensures accurate sensor calibration and verification
- Ideal for HVAC and refrigeration applications
$280.00Low Price Guarantee - $220.00SKU: WXS-AM
Optex WXS-AM 180° Panoramic Outdoor PIR Detector
- Up to 40', 180 degree outdoor PIR with anti-masking
- 4 PIR providing left/ right double layered detection for pet tolerance
- Selectable low (2.6'-4') or high (6.5') mount
- Independent left/ right detection areas and alarm outputs - ideal for CCTV
$220.00Low Price Guarantee - $75.50SKU: 319PIRC
ELK 319PIRC 360° Motion Sensor, 319 Series
- Designed for ceiling mount applications
- 360° coverage with detection area of 14-40 feet, depending on the mounting height
- 319.5 MHz operating frequency
- Compatible with many popular systems, including M1 Controls
- Ideal for existing Interlogix systems in need of replacement sensors
$75.50Low Price Guarantee - $71.87SKU: RFMS-ZBMS-3
Bosch RFMS-ZBMS-3 Wireless Sensor, 3 pack
- 5 year or greater battery life with a single CR2 battery
- Reliable door/window installation is assured with LED indicators for radio link quality, and detector/ magnet alignment
- Best in class false alarm immunity and installation flexibility through use of 1.3 inch (33 mm) break distance width Hall effect sensor
$71.87Low Price Guarantee - $46.80SKU: 20RS-12-W
GRI 20RS-12-W Miniature Recessed Switch Set, 1/2" Gap Closed Loop, White
- Ideal for thin framed doors and windows
- Recessed magnetic contact
- Press to fit
- 12″ #22AWG leads or screw terminals
- Longer leads, zip cord or jacketed cable upon request
$46.80Low Price Guarantee - $43.95SKU: AP-360B-C
Optex AP-360B-C- Indoor Recessed Mount PIR Detector with 360 Degree Detection, Wired
- 20' detection area at mounting height 14'9"
- Compact and discreet design
- Detection sensitivity: High, Medium, Low selectable
- Can be installed with recessed mount on the walls / ceiling
- Tamper function
$43.95Low Price Guarantee - $26.22SKU: MSS-301C-WG-GREY
Magnasphere MSS-301C-WG-GREY 1" Recessed with 1 switch, 1 Closed Loop with Extended Reach Magnet (5/8" min gap) - Grey
- Multiple (2 or 3) individual contact outputs
- Available in closed and open loop configurations
- Available in 1" diameter recessed, and surface mount, armored cable version
- Cost competitive
- UL and ULC listed
$26.22Low Price Guarantee - $16.94SKU: N78BLK-STDD
Nascom N78BLK-STDD Recessed 1" PTF DPDT Switch/Magnet Set for Steel/Wood Doors, Wire Leads, Black
- Snap fit on steel - no glue required
- 12" 22AWG wire leads
- Wide gap - N35 NdFeB rare earth magnetт
- Encapsulated hermetically sealed contacts
- Polypropylene housings
$16.94Low Price Guarantee - $8.70SKU: NC1175TWUM-ST1KBD
Nascom NC1175TWUM-ST1KBD NC1175TUM White Set with 1K Resistor and A Blue Dot
- Press Fit - No Glue Required
- Encapsulated Hermetically Sealed Contacts
- Polypropylene Switch Housing
- Listed To UL634 Standard
- Wide Gap - N35 NdFeB Rare Earth Magnet
$8.70Low Price Guarantee - $3.36SKU: SM-431-TQ/W
Seco-Larm SM-431-TQ/W Screw-Terminal Surface-Mount Magnetic Contacts, White
- Miniature surface-mount magnetic contacts
- Screw mount using side tabs or break off tabs for adhesive mount
- Gold-plated screw terminals for longer expected life and reliability
- Tape to cover screw terminals included
- 1" (25mm) Gap
$3.36Low Price Guarantee - $16.07SKU: SM-226RQ
Seco-Larm SM-226RQ Overhead Door-Mount N.C. Magnetic Contact
- Switch contained in curved, low-profile, cast-aluminum housing
- Magnet enclosed in round bracket
- 24" (61cm) Wire leads enclosed in stainless-steel cable
- 2-3/4" (70mm) Gap
- Switch dimensions: 4-3/8"x1-3/4"x7/16" (111x44x11 mm)
$16.07Low Price Guarantee - $381.44SKU: ISC-FPB1-W120QF
Bosch ISC-FPB1-W120QF 4 Channel Quad-Beam Photoelectric Detector
- Quad beam detection
- Environmental discrimination circuit
- Beam power control to reduce cross-talk
$381.44Low Price Guarantee - $287.37SKU: ISC-FPB1-W60QF
Bosch ISC-FPB1-W60QF 4 Channel Quad-Beam Photoelectric Detector
- Quad beam detection
- Environmental discrimination circuit
- Beam power control to reduce cross-talk
$287.37Low Price Guarantee - $159.00SKU: QXI-DT
Optex QXI-DT Hard-Wired Model with Anti-Blocking and Dual-Technology
- 40', 120 degree outdoor PIR with anti-blocking
- Dual-technology for greater stability, double layered detection and pet tolerant
- High (7'-9') mount or low mount (2.6'-4') for pet alley mode
- SMDA logic and double conductive shielding to minimize nuisance alarms
$159.00Low Price Guarantee - $33.74SKU: ISN-CSD70-W
Radionix by Bosch ISN-CSD70-W 3/4" White Stubby Recessed Contact - 10pk
- Closed loop
- Sensitive non-stick rhodium reed
- Bent long leads keep solder off the glass of the reed
- Two solder points on the wire
- Thick plastic shell resists crushing
$33.74Low Price Guarantee - $18.52SKU: N1178CB-STDD
Nascom N1178CB-STDD Recessed 3/4" Stubby DPDT Switch / Magnet Set for Steel / Wood Doors, Wire Leads, Brown
- Snap Fit on Steel - No Glue Required
- Encapsulated Hermetically Sealed Contacts
- 12" 22AWG Wire Leads
- Polypropylene Housings
- Wide Gap - N35 NdFeB Rare Earth Magnet
$18.52Low Price Guarantee - $15.44SKU: N78B-STSD
Nascom N78B-STSD Recessed 1" PTF SPDT Switch/Magnet Set for Steel/Wood Doors, Wire Leads
- Recessed 1" PTF SPDT Switch/Magnet Set for Steel/Wood Doors
- Wire Leads
$15.44Low Price Guarantee - $10.89SKU: 240-8
United Security Products 240-8 240 Twist LOC with 0.4mm Rare Earth Magnet
- 0.6 Inch Gap
- Size 1/4″ x 1/2″
- Closed Circuit
- 24″ Leads
- 0.4″ diameter disc magnet
$10.89Low Price Guarantee - $10.57SKU: 142-SP
United Security Products 142-SP Wide Gap 3/8" Press Fit Contact, SPDT 0.70" Gap
- Wide gap 3/8" press fit contact
- SPDT - 0.70" gap
$10.57Low Price Guarantee - $7.32SKU: 150-SP
United Security Products 150-SP 3/8" x 3/5" Stubby Press Fit Contact, CC
- 3/8″ x 1/2″ Stubby Press Fit
- 0.50 Inch Gap
- Rhodium Contacts
- Pre-Wired 24″ Inch Leads
- Powerful Rare Earth Magnet
$7.32Low Price Guarantee - $7.18SKU: 130-SP
United Security Products 130-SP Wide Gap Mini Stick-on Contact 1.0' Gap - CC
- 1" SP Wide Gap Performance
- Rhodium Contacts
- Self-Adhesive or Screw Mounting
- Ideal for Sliding Doors and Windows
- Break-away Flange
$7.18Low Price Guarantee - $4.85SKU: N25WGSW-SW1K
Nascom N25WGSW-SW1K Mini Rectangular Stick On Closed Loop Switch Only with 1K Res In Ser, Wire Leads
- Mini Rectangular Stick On Closed Loop Switch Only
- 1K Res In Ser
- Wire Leads
$4.85Low Price Guarantee - $656.25SKU: TX-12-ND WHITE
Macurco TX-12-ND WHITE 120V Nitrogen Dioxide Fixed Gas Detector Controller and Transducer, White Housing
- Mounts on a standard 4" x 4" electrical box
- 5 A SPDT relay controls valves, louvers or exhaust fans
- 0.5 A N.O. or N.C alarm relay connects to warning devices or control panels
- 4-20mA current loop - compatible with the Macurco DVP-120 Control Panel
- Supervised system design: detector problem will cause relay activation
$656.25Low Price Guarantee - $27.00SKU: MSS-RFS-200-W
Magnasphere MSS-RFS-200-W 3.2" Wireless Door Contact Compatible with Honeywell, White
- Made in America
- Smaller / Narrow switch package
- Higher Security Magnasphere Switch technology
- Superior RF performance even on steel surfaces
- Ultra-low current draw extends battery life (up to 14+ years)
$27.00Low Price Guarantee


















































