MCM Electronics

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Image of Adafruit Industries 642 High Temp Waterproof DS18B20 Digital Temperature Sensor

2820

83-17683 - High Temp Waterproof DS18B20 Digital Temperature Sensor

This is a pre-wired and waterproofed version of the DS18B20 sensor made with a PTFE wire cable. Handy for when you need to measure something far away, or in wet conditions. This sensor is a little more expensive than the other waterproof version we have with a PVC...

Mfr Name: Adafruit Industries

Mfr Number: 642

See all items in Sensors

In Stock New Item

$14.99

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Image of Tenma 72-8500 Inductive Tone and Probe Cable Locator Kit

1544

72-8500 - Inductive Tone and Probe Cable Locator Kit

The Tone Generator / Probe Set is basic necessity for anyone running data, voice or any other low voltage cable. It is also suitable for tracing alarm, coax or speaker cables throughout a structure. Two piece kit includes tone generator and amplifier probe, plus b...

Mfr Name: Tenma

Mfr Number: 72-8500

See all items in Tone & Probe Kits

In Stock

$39.89

(MSRP: $59.99)
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Image of PUI Audio API-4260-LW150-R 12VDC Programmable Buzzer

1264

50-2992 - 12VDC Programmable Buzzer

Programmable Indicator This device connects to any 12VDC source in the same manner as commonly available buzzers and piezo sounders, yet allows you to program up to 30 seconds of any WAV or MP3 file via USB from your computer. With the flexibility of programming ...

Mfr Name: PUI Audio

Mfr Number: API-4260-LW150-R

See all items in Buzzers

In Stock

$16.22

(MSRP: $19.95)
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Image of Tenma 72-9175 Triple Display Clock/Thermometer/Hygrometer

1284

72-9175 - Triple Display Clock/Thermometer/Hygrometer

Convenient test-quality thermometer, hygrometer, and clock Large triple display Includes desk stand and wall mount

Mfr Name: Tenma

Mfr Number: 72-9175

See all items in Indoor/Outdoor Thermometers

Limited Stock

$11.99

(MSRP: $29.99)
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Image of Distributed By MCM TA308 Indoor Digital Thermometer and Hygrometer

1108

72-12910 - Indoor Digital Thermometer and Hygrometer

A simple thermometer with a clock is an essential device for every room, shop, store, or garage. This affordable version features a large LCD display that can easily be read across the room. Temperature, time, and humidity can be viewed at a glance.

Mfr Name: Distributed By MCM

Mfr Number: TA308

See all items in Indoor/Outdoor Thermometers

In Stock

$6.49

(MSRP: $11.49)
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Image of Distributed By MCM TMR-050AL 50mm Mylar Cone Speaker

1044

SR00186 - 50mm Mylar Cone Speaker

A range of three weatherproof speakers available in 50mm, 66mm and 85mm sizes. The cones are made from water resistant transparent Mylar® film. Suitable for portable or exterior equipment where moisture may be encountered, i.e. alarm panels, sound...

Mfr Name: Distributed By MCM

Mfr Number: TMR-050AL

See all items in 0''~4 1/2'' Full Range Speakers

In Stock

$2.70

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Image of Seco-larm SA-025Q Timer Module

960

82-8590 - Timer Module

Timer can be set to open or close the relay at the start or end of a timing cycle from 1 to 60 seconds. Can be triggered by positive DC voltage, dry contact closure or open dry contact. The relay can be programmed to pulse activate or activate for one second at th...

Mfr Name: Seco-larm

Mfr Number: SA-025Q

See all items in Modules

In Stock

$18.99

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Image of APC BE350G APC BE350R Battery Backup

872

28-9845 - APC BE350R Battery Backup

The most popular desktop UPS in the world! The Back-UPS ES offers our best value for protecting your home and home office computer systems. It provides battery backup power that allows you to work through short and medium length power outages. It also safeguards...

Mfr Name: APC

Mfr Number: BE350G

See all items in 200~350VA

In Stock

$59.99

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Image of MG Electronics ST-241A 24VDC/1.0A Switching Power Adapter with Screw Terminals and LED

880

82-11328 - 24VDC/1.0A Switching Power Adapter with Screw Terminals and LED

Designed for 24VDC operation in CCTV and alarm applications, this UL and CSA listed AC to DC switching power supply features screw terminal connections, precision power regulation, LED supervision, and short circuit/over voltage protection.

Mfr Name: MG Electronics

Mfr Number: ST-241A

See all items in Transformers

In Stock

$9.99

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Image of Seco-larm ST-BD01Q Low Voltage Battery Cut-Off - 12/24V Selectable

880

82-13990 - Low Voltage Battery Cut-Off - 12/24V Selectable

The Enforcer Low-Voltage Battery Cut-Off prevents deep discharge of backup batteries. Use it to save power for a backup battery on your security system. If there is a power failure this device will ensure that your backup battery remains powered and your security ...

Mfr Name: Seco-larm

Mfr Number: ST-BD01Q

See all items in Modules

In Stock

$14.99

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Image of Kemo Electronic B214 Alarm B214 Ultrasonic Proximity

836

28-6350 - Alarm B214 Ultrasonic Proximity

Ultrasonic Proximity Sensor Kit combines an ultrasonic sender and receiver, mounted on the same PC board, to detect the presence of large objects. Use as a proximity alarm or as vehicle back up alarm. Range is adjustable from 4~32". Sensitivity is adjusted via bo...

Mfr Name: Kemo Electronic

Mfr Number: B214

See all items in Relay Modules

In Stock

$13.38

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Image of Safety Technology International STI-WS100SG2 All-In-One Wireless Home Alarm System

756

82-14175 - All-In-One Wireless Home Alarm System

The Wireless Home Alarm is a high quality security system with user-friendly features that allow you to know your home or office is secure at all times. The system is controlled by a Smart Panel which gathers information from wireless sensors placed in various loc...

Mfr Name: Safety Technology International

Mfr Number: STI-WS100SG2

See all items in Alarm Systems

In Stock

$109.00

(MSRP: $249.00)
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Image of Altronix RB 610 Relay Modules

840

82-3200 - Relay Modules

Each cluster contains six relay modules which can be separated by simply snapping them apart. 12 or 24VDC selectable operation. Single form "C" 10A/120VAC or 28VDC relay contact. Screw terminals handle up to 12 gauge wire. Mfr. #RB610.

Mfr Name: Altronix

Mfr Number: RB 610

See all items in Modules

In Stock

$27.99

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Image of NTE Electronics 54-630 Magnetic Alarm Reed Switch - 200VDC SPST-NO Flange Mount

796

26-2005 - Magnetic Alarm Reed Switch - 200VDC SPST-NO Flange Mount

Magnetic Alarm Reed Switch Mini Stick-On Contact with Flange Center Leads 18” Leads Adhesive and Screw Mount Standard Gap: 1” (25mm)

Mfr Name: NTE Electronics

Mfr Number: 54-630

See all items in Security

In Stock

$4.23

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Image of Distributed By MCM TA298 Indoor and Outdoor Digital Thermometer and Hygrometer with Probe

808

72-12905 - Indoor and Outdoor Digital Thermometer and Hygrometer with Probe

A simple thermometer with a clock is an essential device for every room, shop, store, or garage. This affordable version features a large LCD display that can easily be read across the room. Temperature (Indoor and outdoor), time, and humidity can be viewed at a g...

Mfr Name: Distributed By MCM

Mfr Number: TA298

See all items in Indoor/Outdoor Thermometers

In Stock

$7.49

(MSRP: $13.49)
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