$120.95 Sale:$106.95
Model #SN78SM
In Stock
Senses ferrous targets to generate a square wave signal for tachometers and speedometers - May also require SN74Z The Magnetic Proximity Sensor will respond to pulse signals across a 1/16" air-gap between the sensor tip and disk-rotor, IRS-CV joint bolt-heads or notched brake-drum edge.
It is useful on trans-axle setups or transmissions without mechanical speedometer cable connection.
Using a stock GM Speed Sensor - 700R, 4L60, etc. Our Speed Pulse Convertor Box is used on late model GM 700-R or 4L60 over-drive transmission applications with a GM VSS (Vehicle Speed Sensor). This Convertor Box will convert the signals from the stock GM-VSS so your Classic Programmable Speedometer will read and operate correctly. The original GM-VSS signal can still be used to operate your fuel-injection, engine monitoring, transmission shift points, etc.
Tachometer Filter Our Tach Filter is supplied with most Classic Tachometers. Installed between the Tachometer and the Ignition Trigger Source (usually the coil) this filter traps, redirects, and dissipates the high voltage spikes and surges that are emitted by any late-model high-energy ignition system.
It also modifies the sharp up-and-down spikes into a semi-square wave signal for steady pointer readings and faster pointer response. Three color-coded wires allow for fast and easy fool-proof connections for life-time protection and superior response on all Classic Tachometers.
WARNING: Cancer and Reproductive Harm
Classic Instruments is a company dealing in the manufacture of gauges for vehicles. They are located in Boyne City, Michigan, United States of America. They have been in the limelight for their innovative products for 37 years now. They are the first and only company that uses micro-chip technology along with electrical instruments. The price range varies for different styles of products. They claim to not compromise on their quality.
The company is on a mission to provide vintage-style gauges to its customers. They are providing high-quality gauges which provide a seamless and rich experience to the buyers. Constant innovation and betterment are one of their missions while running the company towards the road to success. They are on a mission to remain the leaders in their respective industries and provide full services to their employees and company.
The first product catalog of Classic Instruments was released in 1978 that is termed as the original classic series by them. In the year 1980, their first speedometer comprising of electric adjustability was introduced. After a couple of years was the year when mechanical speedometers were discontinued. In 1987, the first-ever programmable electric speedometer was unveiled. since then the success story is continuously growing and the company was able to achieve a lot of awards for its contribution to the industry. In 2021, Classic Instruments release a full cluster set for vintage ford cars. The company has been continuously paving the road to success by their innovative unique ideas and perfect quality products.
Vivid Racing is honored to be the distributor of their products on our website. You can find their individual gauges, direct-fit gauge sets, and universal gauge sets in various sizes and model.
