---
product_id: 71018398
title: "Taiss/photoelectric Sensor 30 cm Adjustable M18 Diffuse photoelectric Switch Sensor Optical Three Lines NPN NO (Normally Open) Proximity Switch 6-36VDC E3F-DS30C4"
brand: "taiss"
price: "HK$185"
currency: HKD
in_stock: true
reviews_count: 9
category: "Taiss"
url: https://www.desertcart.hk/products/71018398-taiss-photoelectric-sensor-30-cm-adjustable-m18-diffuse-photoelectric-switch
store_origin: HK
region: Hong Kong
---

# 30cm adjustable sensing range 6-36V wide voltage compatibility M18 threaded durable design Taiss/photoelectric Sensor 30 cm Adjustable M18 Diffuse photoelectric Switch Sensor Optical Three Lines NPN NO (Normally Open) Proximity Switch 6-36VDC E3F-DS30C4

**Brand:** taiss
**Price:** HK$185
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your automation game with precision sensing that adapts to your workflow!

## Quick Answers

- **What is this?** Taiss/photoelectric Sensor 30 cm Adjustable M18 Diffuse photoelectric Switch Sensor Optical Three Lines NPN NO (Normally Open) Proximity Switch 6-36VDC E3F-DS30C4 by taiss
- **How much does it cost?** HK$185 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/71018398-taiss-photoelectric-sensor-30-cm-adjustable-m18-diffuse-photoelectric-switch)

## Best For

- taiss enthusiasts

## Why This Product

- Trusted taiss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Efficiency:** Only 57g for effortless installation without bulk
- • **Plug & Play Simplicity:** 3-wire NPN NO output ensures easy integration with existing systems
- • **Power Flexibility, No Limits:** Operates seamlessly within a broad 6-36V DC range
- • **Robust Build, Industrial Grade:** Compact M18 threaded body crafted from plastic and alloy for lasting durability
- • **Precision Sensing, Tailored to You:** Adjustable 30cm detection distance for exact proximity control

## Overview

The Taiss E3F-DS30C4 is a compact, adjustable diffuse photoelectric sensor featuring a 30cm detection range, M18 threaded design, and wide 6-36V DC voltage compatibility. Its NPN normally open output and durable plastic-alloy build make it ideal for precise, reliable proximity detection in industrial and scientific applications.

## Description

Taiss/photoelectric Sensor 30 cm Adjustable M18 Diffuse photoelectric Switch Sensor Optical Three Lines NPN NO (Normally Open) Proximity Switch 6-36VDC E3F-DS30C4: desertcart.com: Industrial & Scientific

Review: It won't work if you don't adjust the sensitivity! - I got a panel tach that came with a magnetic pick up. I made sure to match specs (npn no) same as that one and used this instead. It works brilliantly! Best part is I use it for indoor blower speeds and you don't even have to paint the blower metal black. Just stick on the reflective tape and go! I verified accuracy with a quality tool and it is spot on, only off by .4 rpms when at 180. I have used it up to 1100 rpms and it's able to go much higher. The whole project cost me like $30.00 as I used a transformer I had kicking around and a metal box to put the components and display in, as well as a power cord.
Review: Nice sensor - They sent me what was in the description. So far the sensors have worked well for me.

## Features

- Inductive type: diffuse reflection; Induction distance: 30cm adjustable; Working voltage: 6-36V both can The positive, blue, black, black, black.
- Product Name : Photoelectric Switch;Sending Light : Infrared Rays;Model : E3F-DS30C4;Detection Way : Diffuse Type Inductive type: diffuse reflection; Induction distance: 30cm adjustable;
- Output Form : 3 Wires;Voltage : DC 6-36V;Output State : NPN NO
- Body Size : 2.3x 6.9cm/0.9" x 2.7'' (Max.D*L); Thread diameter: 18mm; Material : Plastic, Alloy;Color : Black, Orange
- Cable Length : 1.2m / 47'';Weight : 57g;Package Content : 1 x Photoelectric Switch

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B073WQV3D9 |
| Best Sellers Rank | #59,968 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #35 in Photoelectric Sensors |
| Date First Available | July 12, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.98 ounces |
| Item model number | E3F-DS30C4 |
| Manufacturer | Taiss |
| Package Dimensions | 5.95 x 3.73 x 1.1 inches |

## Images

![Taiss/photoelectric Sensor 30 cm Adjustable M18 Diffuse photoelectric Switch Sensor Optical Three Lines NPN NO (Normally Open) Proximity Switch 6-36VDC E3F-DS30C4 - Image 1](https://m.media-amazon.com/images/I/61nBFxkDEiL.jpg)

## Questions & Answers

**Q: What is the maximum rpm this sensor can handle?  fyi, i need something that can go as high as 40,000 rpm.**
A: The specs state 2.5 ms reset time.  According to my calculations, 40,000 rpm with one reflective strip equates to a  reset time of less than 1.5 ms.  Therefore it would not be expected to work.

**Q: Pero traslucidas podra ver es para vidrio sin color**
A: Action indication: red LED
Detectable objects: ≧Φ18mm opaque objects
Detection distance: 30cm
Distance adjustable range: 5-30cm

**Q: Does the npn no version need a pull up or pull down resistor?  what value?**
A: This is just an inductive switch and has no other effect

**Q: What is the adjustment screw for? is the 30cm mentioned the minimum or maximum range? what does the red led tell you?**
A: The maximum sensing distance is 30cm, the red probe is PMMA light transmission mirror, the response is more sensitive

## Customer Reviews

### ⭐⭐⭐⭐⭐ It won't work if you don't adjust the sensitivity!
*by C***E on September 7, 2019*

I got a panel tach that came with a magnetic pick up. I made sure to match specs (npn no) same as that one and used this instead. It works brilliantly! Best part is I use it for indoor blower speeds and you don't even have to paint the blower metal black. Just stick on the reflective tape and go! I verified accuracy with a quality tool and it is spot on, only off by .4 rpms when at 180. I have used it up to 1100 rpms and it's able to go much higher. The whole project cost me like $30.00 as I used a transformer I had kicking around and a metal box to put the components and display in, as well as a power cord.

### ⭐⭐⭐⭐⭐ Nice sensor
*by H***R on February 28, 2025*

They sent me what was in the description. So far the sensors have worked well for me.

### ⭐⭐⭐⭐⭐ Works well
*by M***Y on October 17, 2024*

Good construction, lightweight and easy to install. Works well for my application.

## Frequently Bought Together

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-01-30*