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 10pcs Twist on BNC Male RG59 Connector for CCTV cameras  US $7.59
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 8pcs BNC male twist on connectors RG59 coax cable plugs US $.99
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 10X BNC male Solder less BNC connector for RG59 Cable US $.99
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 20PCS BNC male Solder less BNC connector for RG59 Cable US $.95
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 16 CH DVR 12 CAMERA CCTV SURVEILLANCE SECURITY SYSTEM US $950.00
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 100 LOT TWIST ON TO MALE BNC CONNECTORS RG 6 COAXIAL US $49.99
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 100 LOT TWIST ON TO MALE BNC CONNECTORS RG59 COAXIAL US $49.99
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 2 pcsVIDEO BALUN video transceiver US $4.99
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 4 pcs2 PAIRS VIDEO BALUN video transceiver US $9.99
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GE 51107 Smart Home Wireless Alarm System Kit List Price: $71.10 Sale Price: $22.99 Average Rating:   |
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The GE 51107 Personal Security Alarm Kit includes everything you need to help secure your home, including a deluxe door alarm with a four-digit keypad and three independent window alarms. Best of all, there's no wiring or drilling required for installation... |
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Skylink SC-100 Security System Deluxe Kit List Price: $129.77 Sale Price: $88.48 Average Rating: |
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Designed for use in small- to medium-sized homes or offices of up to 3,000 square feet, the Skylink SC-100 Security System Deluxe Kit helps you protect your family from unwanted intruders or theft, while also giving you real peace of mind in case of emergencies... |
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Wireless Home Security System List Price: $199.95 Sale Price: Too low to display Average Rating: |
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Mace Brand Wireless Home Security System Why spend hundreds of dollars on a security system and pay monitoring fees when you can get the MACE WIRELESS HOME SECURITY SYSTEM for a fraction of the cost? This system detecets motion or a door or window opening, activates an alarm and cals your phone... |
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Skylink SC-10 Security System Basic Kit List Price: $101.93 Sale Price: $67.43 Average Rating:  |
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DIY Wireless Security System - Easy to install and ready to use, no programming is required. Rolling Code Technology - Leading edge technology, provides maximum security & reduces false alarm. Ideal for homes, apartments, convenience stores, gas station and condominiums... |
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Macally Air-Alarm1 SecurityMan D.I.Y. Wireless Home Alarm System Kit List Price: $119.00 Sale Price: Too low to display Average Rating:  |
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SecurityMan Air-Alarm1 is a state-of-the-art wireless alarm system kit for homes and businesses. It is user-friendly easy to use protecting homes/businesses at a minimum cost of investment. Do-It-Your-Self installation and monitoring alarm system without monthly fees is a key benefit for users... |
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Driveway Patrol Sensor and Receiver Kit List Price: $39.99 Sale Price: $12.50 Average Rating:  |
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When a visitor--wanted or unwanted--approaches a house on foot or in a vehicle the motion-detecting sensor unit of this warning device sends a signal to the receiver indoors, which chimes an alert. The device is wireless and has a 400-foot range... |
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Q-See QSDL506W Wireless Home Security Alarm System Kit (DIY) List Price: $99.99 Sale Price: $39.99 Average Rating: |
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Keep your home or business safe and secure with this reliable, cutting-edge wireless security system. The QSDL506W Wireless Security Alarm System utilizes innovative technology with trouble-free wireless connections to provide security, making it a great choice for protecting against intruders... |
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SecurityMan SM87B Wireless Door/Window Sensor for AirAlarm Home Security System (White) List Price: $19.99 Sale Price: Too low to display Average Rating:  |
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SM-87B is an add-on wireless magnetic door/window sensor for SecurityMan Air-Alarm system. Wireless transmitting distance is up to 450ft (in open area). It includes a 23A 12V alkaline battery which could last up to 2 years. |
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Defender SN301-8CH-008 8 Channel H.264 Smart DVR Security System with Coaching iMenu and 8 Hi-Res CCD Night Vision Surveillance Cameras (Black) List Price: $699.99 Sale Price: $680.00 Average Rating: |
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This Defender DVR system will work for almost any property because it includes 8 indoor/outdoor night vision cameras. Depending on the size of your business or home, you can mount the cameras at all entrances, in your yard and even inside... |
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SecurityMan SM80 Wireless PIR Motion Sensor for AirAlarm Home Security System (White) List Price: $24.99 Sale Price: Too low to display Average Rating: |
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SM-80 is an add-on wireless PIR motion sensor for SecurityMan Air-Alarm system. Its wireless transmitting distance is up to 450ft (in open area). It includes a 9V alkaline battery which could last up to 2 years... |
Male Twist Connectors
How do you test wire connectors?
Assume you start with a 12 inch piece of 16guage stranded automotive wire for each connector test.
You then check continuity and resistance for the wire.
Then you cut the 12 inch piece of wire in half and try reconnecting one end of each wire with following methods.
1) Soldered ends together
2) male/female spade connector
3) ring terminal bolt ring terminal
4) twisted ends together w/ twist cap
Then you check continuity and resistance for each different type of connector.
How can you tell if you have connected the two wires properly? i.e. soldered correctly, or crimped the spade connectors snug enough, or twisted the ends properly or tight enough?
How do you do this with a multimeter?
It sounds as though you're trying to measure the difference between the various types of connections. Is that right?
One difficulty is that multimeters, unless they're laboratory-grade, aren't very accurate at measuring very low resistance values. I don't think you'll get any meaningful results doing continuity and resistance measurements.
An accurate way to determine the resistance in a connection is to measure the voltage drop across the connection. To do this, you'll have to connect a power supply and a resistive load in series with the connection. You'll also need an ammeter so you can tell how much current is flowing through the circuit. Set your multimeter for volts, and place one probe on each side of the connection. The voltage reading represents the amount of voltage lost through the junction. With the voltage and current measurements, you can use Ohm's Law to calculate the resistance in the connection.
However, if you find a resistance, there's no easy way to tell whether it's due to an error in making the connection, or an inherent loss in the type of connection itself. Probably the only way is to repeat the test several times for each connector type, discarding any results that are significantly different from the average.
Given that all of these connection types are used very commonly in car or home wiring, I don't think you'll find much of a significant difference in each of them in terms of resistance. There are other factors that make each of them a good or bad choice in various wiring situations.