---
product_id: 246507420
title: "BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM"
brand: "btmeter"
price: "1241453₫"
currency: VND
in_stock: false
reviews_count: 8
url: https://www.desertcart.vn/products/246507420-btmeter-bt-705a-signal-pick-up-inductive-clamp-lead-measure
store_origin: VN
region: Vietnam
---

# Standard 3/4 inch banana plugs 600-12000 RPM tach range Compatible with BTMETER automotive multimeters BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM

**Brand:** btmeter
**Price:** 1241453₫
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Clamp in, tune up, and never miss a beat with BTMETER BT-705A!

## Quick Answers

- **What is this?** BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM by btmeter
- **How much does it cost?** 1241453₫ with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/246507420-btmeter-bt-705a-signal-pick-up-inductive-clamp-lead-measure)

## Best For

- btmeter enthusiasts

## Why This Product

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

## Key Features

- • **Precision Tach Range:** Accurately measures engine speeds from 600 to 12,000 RPM for versatile diagnostics.
- • **Compact & Lightweight:** Weighing under 1 ounce, it’s a portable tool that fits perfectly in any professional’s toolkit.
- • **Optimized for BTMETER:** Designed specifically for BTMETER models BT-770K, BT-90K, and BT-6688D for reliable signal pickup.
- • **Universal Compatibility:** Equipped with standard banana plugs to seamlessly connect with most automotive multimeters.
- • **User-Friendly Clamp Design:** Easy clamp-on setup with directional marking ensures quick and hassle-free engine speed measurement.

## Overview

The BTMETER BT-705A is a lightweight inductive clamp lead designed to measure engine RPMs between 600 and 12,000. It features standard 3/4 inch banana plugs for broad compatibility with automotive multimeters, especially BTMETER’s own BT-770K, BT-90K, and BT-6688D models. Its easy-to-use clamp design with directional markings ensures precise tachometer readings when used within 10cm of the spark plug wire. Ideal for professional mechanics and automotive enthusiasts seeking reliable engine speed diagnostics.

## Description

Buy BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM: Tachometers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Nice product - Works great
Review: Wildly Inaccurate - So far, very unreliable. Keeps losing connection with the meter. Readings are all over the place and very inconsistent. On some wires it won't read at all. On others, it reads intermittently and causes the meter to reset every few seconds. If I hold it a certain way and pull in just the right angle so it is pulling against the spark plug wire, I can get readings for a few seconds that seem to hover around a certain number +/- 200 rpm. So if the actual RPM is 1000, it will bounce all over the place from 0-5000, but if I hold my mouth just right and close one eye and pull on the cord and play with the angle, I can get it to read between 800-1200 consistently for up to a few seconds before it trips out. The only thing more frustrating than no tool is a bad tool.

## Features

- 【Important Note】This Signal Pickup needs to be used with multimeter or oscillograph for tach RPM measurement for vehicle engine. It’s recommend to use it with BTMETER BT-770K, BT-90K, BT-6688D automotive multimeter.
- 【Great Companion to Automotive DMMs】 Features with standard 3/4 inch banana plugs, which means makes it compatible with most automotive meters that features with signal input.
- 【Inductive Pickup Leads for BT-770K BT-90K】Perfectly work with BTMETER automotive multitester, such as: BT-770K, BT-90K, BT-6688D. To measure secondary end conductors of high voltage ignition coil spark .
- 【Easy to Use】Clamp the spark plug wire with the mark ”→“ on the inductive pickup tool pointing to the spark plug for engine speed measurement.
- 【Notice in Measurement】The distance between the spark plug and the clamp of the instrument must be less than 3.93 inch (10cm) during test, and the ignition frequency of the engine ignition system must be between 10Hz and 400Hz

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08D3MXZ5S |
| Best Sellers Rank | #389,846 in Automotive ( See Top 100 in Automotive ) #141 in Automotive Tachometers |
| Brand | BTMETER |
| Color | Black |
| Date First Available | July 16, 2020 |
| Item Weight | 0.917 ounces |
| Item model number | BT-705A |
| Manufacturer | BTMETER |
| Measurement Type | Multimeter |
| Package Dimensions | 6.14 x 1.93 x 1.69 inches |
| Power Source | Corded Electric |
| Style | Tool |
| UPC | 783903693745 |

## Product Details

- **Brand:** BTMETER
- **Color:** Black
- **Item Weight:** 26 Grams
- **Power Source:** Corded Electric
- **Style:** Tool

## Images

![BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM - Image 1](https://m.media-amazon.com/images/I/61NkOkp00eL.jpg)
![BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM - Image 2](https://m.media-amazon.com/images/I/71b-ZhqgD0L.jpg)
![BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM - Image 3](https://m.media-amazon.com/images/I/61j+VPRoZIS.jpg)
![BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM - Image 4](https://m.media-amazon.com/images/I/71iQarAMTWL.jpg)
![BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM - Image 5](https://m.media-amazon.com/images/I/71eJbk0aUaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice product
*by M***N on January 10, 2025*

Works great

### ⭐ Wildly Inaccurate
*by A***N on September 30, 2025*

So far, very unreliable. Keeps losing connection with the meter. Readings are all over the place and very inconsistent. On some wires it won't read at all. On others, it reads intermittently and causes the meter to reset every few seconds. If I hold it a certain way and pull in just the right angle so it is pulling against the spark plug wire, I can get readings for a few seconds that seem to hover around a certain number +/- 200 rpm. So if the actual RPM is 1000, it will bounce all over the place from 0-5000, but if I hold my mouth just right and close one eye and pull on the cord and play with the angle, I can get it to read between 800-1200 consistently for up to a few seconds before it trips out. The only thing more frustrating than no tool is a bad tool.

### ⭐⭐⭐⭐⭐ Great add on to btmeter should come with it in the first place tho
*by J***E on July 2, 2021*

Makes the by meter worth it

## Frequently Bought Together

- BTMETER BT-705A Signal Pick-up Inductive Clamp Lead, Measure Tach Range 600 RPM ~ 12000 RPM
- BTMETER BT-770K Auto Ranging Automotive Multimeter for Dwell Angle Pulse Width Tach Temperature Duty Cycle Voltage Current Resistance Test
- BTMETER BT-605A AC/DC 600A Clamp-on Current Probe Amp Adapter for Work with Digital Multimeters

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---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-24*