---
product_id: 55521973
title: "LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester"
brand: "aitoserlea"
price: "B/.278"
currency: PAB
in_stock: true
reviews_count: 3
category: "Aitoserlea"
url: https://www.desertcart.com.pa/products/55521973-lb78-lcd-display-signal-generator-4-20ma-0-10v-mv
store_origin: PA
region: Panama
---

# Zero delay key response Built-in long-life battery Self-protection quick-break fuse LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester

**Brand:** aitoserlea
**Price:** B/.278
**Availability:** ✅ In Stock

## Summary

> ⚙️ Calibrate like a pro, stay ahead of the curve!

## Quick Answers

- **What is this?** LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester by aitoserlea
- **How much does it cost?** B/.278 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/55521973-lb78-lcd-display-signal-generator-4-20ma-0-10v-mv)

## Best For

- aitoserlea enthusiasts

## Why This Product

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

## Key Features

- • **Engineered for Safety:** Integrated one-time quick-break fuse protects your device from accidental high-voltage damage.
- • **Power Through Your Day:** Built-in rechargeable battery ensures low power consumption and over 20 hours of continuous use.
- • **Built to Last in Any Environment:** High-stability chips and rugged anti-scratch shell deliver reliable performance even under extreme conditions.
- • **Rational Layout, Effortless Control:** Dedicated independent keys for every function make complex calibrations intuitive and fast.
- • **Instant Precision at Your Fingertips:** Experience lightning-fast key response with zero delay for seamless operation.

## Overview

The LB78 LCD Display Signal Generator is a compact, battery-powered calibrator and signal tester designed for professionals maintaining PLCs, DCS, and field instruments. Featuring zero-delay key response, a built-in long-lasting battery, and a self-protection fuse, it offers high precision and durability with a user-friendly interface and rugged anti-scratch shell. Ideal for voltage, current, and resistance measurements, it ensures reliable, stable performance in demanding industrial environments.

## Description

LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester Features: Its size is small and is easy to be carried Fast speed and zero delay for key response Built-in Battery, Low power dissipation and long stand-by time It is characterized by safety protection with comprehensive in place and clear display It adopts a brand shell and chooses grit finish, resistance soiling and anti-scratch Signal tester: rational key layout, all functions have independent corresponding keys, which are easily to be operated Self-protection signal generator: built-in one-time quick-break fuse can avoid instrument damages caused by misinserting electric supply with 110V or 220V High quality calibrator: some key chips such as DA, reference voltage and operational amplifier adopts stable chips with high temperature and high temperature, to improve temperature stability of instrument and long-term aging performance index LB78 functions cover most functions required for maintenance of PLC, DCS, ESD, field instrument, regulating valve and frequency changer, and it has long-term stability and high precision Parameters: Output signal: V:0-11.00V, mA:0-24.00mA, mV:0-110.0mV Working environment: temperature:-10~50℃, humidity: 20%RH to 80%RH Power consumption: V, mV output 20 + hours, mA output according to the output current decision Dimensions: 108*66*20mm Includes: 1 x LB78 Signal Generator 1 x USB Charging Cable 1 x Carry Bag 1 x English Manual

Review: 4 - 20 mA gen - Easy to use and works very well. Great vaule for money.
Review: Resistant current voltage meter - Item as discribed

## Features

- Fast speed and zero delay for key response
- Built-in Battery, Low power dissipation and long stand-by time
- Signal tester: rational key layout, all functions have independent corresponding keys, which are easily to be operated
- Self-protection signal generator: built-in one-time quick-break fuse can avoid instrument damages caused by misinserting electric supply with 110V or 220V
- High quality calibrator: some key chips such as DA, reference voltage and operational amplifier adopts stable chips with high temperature and high temperature, to improve temperature stability of instrument and long-term aging performance index

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077XDHX4C |
| Best Sellers Rank | #300,519 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #220 in Voltage Testers |
| Brand | Aitoserlea |
| Brand Name | Aitoserlea |
| Color | LB78 |
| Customer Reviews | 4.6 out of 5 stars 12 Reviews |
| Item Weight | 0.27 g |
| Manufacturer | top-tool |
| Measurement Type | Voltmeter |
| Model | LB78 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | LB78 |
| Power Source | Battery Powered,electric |
| Style | LB78 |
| Style Name | LB78 |
| UPC | 686603168677 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 50 °C |

## Product Details

- **Brand:** Aitoserlea
- **Power Source:** Battery Powered,electric
- **Style:** LB78
- **Color:** LB78
- **Upper Temperature Rating:** 50 Degrees Celsius

## Images

![LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester - Image 1](https://m.media-amazon.com/images/I/51FLGBkFF5L.jpg)
![LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester - Image 2](https://m.media-amazon.com/images/I/61nhkLz-p8L.jpg)
![LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester - Image 3](https://m.media-amazon.com/images/I/61WNunWOJGL.jpg)
![LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester - Image 4](https://m.media-amazon.com/images/I/61NDqPD86QL.jpg)
![LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester - Image 5](https://m.media-amazon.com/images/I/61bR0A6-LYL.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 4 - 20 mA gen
*by E***E on October 31, 2019*

Easy to use and works very well. Great vaule for money.

### ⭐⭐⭐⭐⭐ Resistant current voltage meter
*by G***. on July 5, 2019*

Item as discribed

### ⭐⭐⭐⭐⭐ Great addition
*by V***. on July 4, 2019*

This little guys is compact and easy to use. I've set a few back up relays using it, seems fairly accurate also. It's no double for sure, but the dials on these relays aren't exactly precise either.

## Frequently Bought Together

- LB78 LCD Display Signal Generator, 4-20mA /0-10V/mV Resistance Current Voltage Meter Voltmeter Source Process Calibrator Signal Tester
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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-10-19*