What triggers this,it is magnetic itself. Hooked a continuity tester to it and it showed circut closed then set a magnet 1/8" in front still closed?

It needs a strong magnet for pick up. And will need to be closer then a 1/8". If you swing it pass the magnet and watch the tester it will spike on and off.

what triggers this sensor & does it come with the sensor

It is just a sensor and is triggered magnetically

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Universal RPM Sending Unit Tacho Sensor Sender for Tachometer 2 Wires (M18*1.5)

Universal RPM Sending Unit Tacho Sensor Sender for Tachometer 2 Wires (M18*1.5)

Product ID: 178223223

Details

Brand
ELING
Item Weight
3.52 ounces
Item dimensions L x W x H
1.5 x 1.65 x
Material
Nickel
Number of Items
1

🔄Stable Sine Wave Output

⚙️M18*1.5 Thread Precision

🌡️-30~85°C Wide Temp Range

NZ$64

Duties & taxes included

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Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Never miss a beat—track your RPMs with precision and confidence!

PRECISION THREAD FIT - M18*1.5 threading ensures seamless, secure installation for professional-grade reliability.
IP 67 RATED PROTECTION - Dustproof and waterproof design keeps your sensor performing in the harshest conditions.
ALL WEATHER DURABILITY - Operates flawlessly from -30°C to 85°C, built to withstand extreme environments without compromise.
COMPACT EASY INSTALL - Small form factor with simple two-wire connection means less downtime and faster setup.
SIGNAL STABILITY GUARANTEED - Delivers a clean sine wave output with a 47±5% duty factor for accurate RPM readings every time.

The ELING Universal RPM Sending Unit is a nickel-plated, M18*1.5 threaded tachometer sensor designed for accurate gear rotation speed measurement. Featuring a stable sine wave output, wide operating temperature range (-30 to 85°C), and IP67 protection, it offers reliable performance in demanding environments. Its compact size and simple two-wire connection make it an ideal OEM replacement for tractors and industrial machinery, delivering professional-grade accuracy at a fraction of the cost.

Specifications

ASIN	B07RR8NQ45
Best Sellers Rank	#543,203 in Automotive ( See Top 100 in Automotive ) #198 in Automotive Tachometers
Brand Name	ELING
Customer Reviews	4.1 4.1 out of 5 stars (57)
Item Dimensions	1.5 x 1.65 x 4.09 inches
Item Weight	3.52 ounces
Manufacturer	ELING
Material Type	Nickel
Model	M181.5
Number of Items	1
Number of Packs	1
Part Number	880
Thread Style	M18*1.5
UPC	610825807113

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