---
product_id: 631860798
title: "Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps"
brand: "haoguo"
price: "HK$202"
currency: HKD
in_stock: true
reviews_count: 8
category: "Haoguo"
url: https://www.desertcart.hk/products/631860798-solenoid-tester-solenoid-magnet-tool-to-detects-ac-fields-rotation
store_origin: HK
region: Hong Kong
---

# AC field detection Rotation direction tester Keyring portable design Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps

**Brand:** haoguo
**Price:** HK$202
**Availability:** ✅ In Stock

## Summary

> 🛠️ Never miss a beat—test, detect, and diagnose like a pro!

## Quick Answers

- **What is this?** Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps by haoguo
- **How much does it cost?** HK$202 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/631860798-solenoid-tester-solenoid-magnet-tool-to-detects-ac-fields-rotation)

## Best For

- haoguo enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Portable:** Lightweight ABS plastic design fits on your keyring for on-the-go readiness.
- • **Essential for Pros:** A must-have for plumbers and heating contractors to troubleshoot efficiently.
- • **Instant AC Field Detection:** Quickly identifies strong AC magnetic fields for precise diagnostics.
- • **Rotation Direction Indicator:** Visual disc rotation reveals pump rotation direction effortlessly.
- • **Solenoid Valve Compatibility:** Versatile tool that detects solenoid valves with ease.

## Overview

The Haoguo Solenoid Tester is a compact, durable tool designed to detect AC magnetic fields, test solenoid valves, and determine the rotation direction of circulating pumps. Its portable keyring design ensures it's always within reach for plumbing and heating professionals needing quick, reliable diagnostics.

## Description

Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps

Review: Works - Works well
Review: A Must Have... - A must have tools fir troubleshooting..

## Features

- WHAT CAN WE DO FOR YOU: You can test the rotation direction of the rotation pump according to the discating direction of our products
- DETECTS AC FIELDS: When the indicator is exposed to a strong enough AC magnetic field, the rotation of the disc indicates that there is a communication magnetic field on the point of placing or holding the indicator
- MORE FUNCTION: Detects solenoid valves
- PORTABLE AND PRACTICAL: Any plumber or heating contractor should have a small, portable and practical tool
- GIFT: Our product comes with a key ring tool, you can keep it together with your keys to prevent loss

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Haoguo |
| Exterior Finish | Abs,Plastic |
| Inlet Connection Type | Flare |
| Item dimensions L x W x H | 0.1 x 2 x 0.29 inches |
| Material | Metal, Plastic |
| Outlet Connection Type | Flare |

## Product Details

- **Brand:** Haoguo
- **Exterior Finish:** Abs,Plastic
- **Inlet Connection Type:** Flare
- **Item dimensions L x W x H:** 0.1 x 2 x 0.29 inches
- **Manufacturer:** ZZL INC.
- **Material:** Metal, Plastic
- **Number of Ports:** 2
- **Outlet Connection Size:** 2 Inches
- **Outlet Connection Type:** Flare

## Images

![Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps - Image 1](https://m.media-amazon.com/images/I/61E2cCuPsVL.jpg)
![Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps - Image 2](https://m.media-amazon.com/images/I/61Enu4wmzRL.jpg)
![Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps - Image 3](https://m.media-amazon.com/images/I/616nTUH7reL.jpg)
![Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps - Image 4](https://m.media-amazon.com/images/I/61f5+0r0ihL.jpg)
![Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps - Image 5](https://m.media-amazon.com/images/I/61yJvx5XY-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works
*by E***A on January 14, 2026*

Works well

### ⭐⭐⭐⭐⭐ A Must Have...
*by L***M on December 3, 2025*

A must have tools fir troubleshooting..

### ⭐ Not well built
*by A***Z on November 20, 2025*

Put it on my key chain , it fell apart in 2 days

## Frequently Bought Together

- Solenoid Tester, Solenoid Magnet Tool to Detects Ac Fields, and Rotation Tester for Circulating Pumps
- Rotation Tester and AC Detector for Circulating Pumps etc
- Solenoid Magnet, Solenoid Valve Magnet Tool #TLMKC, Solenoid Valve Troubleshooting Magnet Tool 18mm, Fits Most Industry Valves, 1 Pcs

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hk/products/631860798-solenoid-tester-solenoid-magnet-tool-to-detects-ac-fields-rotation](https://www.desertcart.hk/products/631860798-solenoid-tester-solenoid-magnet-tool-to-detects-ac-fields-rotation)

---

*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-08*