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Sensors for HPM Series Speed Sensor SR-RPM-300-05-3C TACH WITH 5 PIN FIXED CABLE | FT9781

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Description & Features

The SR-RPM-300-05-3C is a tachometer-style speed sensor built specifically for integration with WEBTEC HPM Series instruments that accept an SR signal input. It is not compatible with HPM units lacking this input type, making correct model matching essential before installation.

Housed in a combination of polyurethane, zinc nickel-plated, and brass materials with copper alloy internals, the sensor is lightweight at 0.3 kg and built to withstand ambient temperatures from 0 to 70 °C (32 to 158 °F). It operates on a DC power supply of 8 to 15 V and connects via a 5-pin push-pull fixed cable, simplifying integration into existing HPM measurement setups. The compact, robust construction suits mobile and industrial hydraulic test and measurement applications where reliable rotational speed monitoring is required alongside flow and pressure data.

SKU: FT9781
Supplier Part Number (MPN): SR-RPM-300-05-3C TACH WITH 5 PIN FIXED CABLE

Specifications

Brand
WEBTEC
Brand
Webtec
Pack Size
1.00
UOM
EA
Supplier Part Number
FT9781
Ambient Temperature
0 to 70 °C, 32 to 158 °F
Body Materials
Polyurethane, Zinc nickel plated, Brass
Connection Type
5-Pin Push Pull
Gross Weight
0.3 kg, 0.66 lbs
Internal Materials
Copper Alloy
Net Weight
0.3 kg, 0.66 lbs
Power Supply
8 – 15 V DC
Product Weight
0.99 lbs

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Product Questions & Answers (2)

Question by: Shawn S on Jun 5, 2026, 5:11 PM
How does the SR-RPM-300-05-3C sensor connect to my system?
Answer by: Customer Support on Jun 7, 2026, 8:26 AM
For connecting the SR-RPM-300-05-3C sensor, you'll need a 5-Pin Push Pull electrical connection. This setup ensures a secure link, compatible with HPM systems having an SR input signal.
Question by: Ross W on Oct 13, 2025, 7:36 AM
this sensor got a 5-pin push pull connector on it, does that mean I need a specific mating cable or harness to hook it up, or is it a common enough connector that I can source something locally?
Answer by: Customer Support on Oct 14, 2025, 10:51 PM
The 5-pin push pull connection is a fixed cable configuration on this unit, meaning the cable is already attached to the sensor rather than requiring a separate mating connector at the sensor end. You would just need to make sure whatever you're connecting it to on the HPM side accepts that cable termination. It's worth noting the sensor only works with HPM units that have an SR input, so pairing it with the right HPM model is the more critical piece before worrying about the cable end.