---
product_id: 389126794
title: "RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404"
brand: "ace instruments"
price: "€ 247.69"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/389126794-rtd-temperature-calibrator-for-field-temperature-indicators-temperature-controllers-pid
store_origin: ES
region: Spain
---

# Backlit LCD Display 12-Way Rotary Switch ±0.3°C Accuracy RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404

**Brand:** ace instruments
**Price:** € 247.69
**Availability:** ✅ In Stock

## Summary

> 🌟 Calibrate Like a Pro, Anywhere, Anytime!

## Quick Answers

- **What is this?** RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404 by ace instruments
- **How much does it cost?** € 247.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/389126794-rtd-temperature-calibrator-for-field-temperature-indicators-temperature-controllers-pid)

## Best For

- ace instruments enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Readability:** Backlit LCD screen guarantees clear visibility in any lighting condition, perfect for fieldwork and low-light environments.
- • **Smart Power Management:** Automatic power on/off function maximizes battery life, so you’re always ready when the job calls.
- • **Precision You Can Trust:** Achieve ultra-accurate temperature calibration with ±0.3°C precision, ensuring your instruments never miss a beat.
- • **Compact & Portable Design:** Lightweight (250g) and pocket-sized (48x48x70mm), this calibrator fits perfectly into your toolkit for on-the-go precision.
- • **Versatile 12-Way Knob Control:** Seamlessly simulate 12 distinct temperature steps from -100°C to 400°C with high-quality gold-plated rotary contacts for durability and reliability.

## Overview

The Ace Instruments AI-CAL-404 RTD Temperature Calibrator is a precision tool designed for field calibration of temperature indicators, controllers, and data loggers. Featuring ±0.3°C accuracy, a versatile 12-way rotary switch with gold-plated contacts, and a backlit LCD, it ensures reliable and clear temperature simulation from -100°C to 400°C. Its compact, lightweight design and smart power management make it an indispensable companion for professionals demanding flawless temperature control in any environment.

## Description

RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404

## Features

- Manufacturer: Ace Instruments | Model No: CAL-404
- Features: Direct TC & RTD Output | DC Current .001 mA Resolution | Back Light LCD | Relative Range Selection 25% to 100% | Loop Power | Automatic Power On/Off Function |
- Accuracy: +/-0.3 Deg.C | Type: 12 WAY KNOB TYPE RTD SIMULATOR, 3 WIRE TYPE |
- Temperature Steps (Deg.C) : -100, -50, -25, 0, 25, 50, 100, 150, 200, 250, 300, 400 Deg. C | Rotary Switch: High Quality Gold Plated Contacts| Dimensions: 48 X 48 X 70(L X B X D in mm.)
- Supply Scope: 1 Unit of RTD Calibrator Instruction Manual and Calibration Certificate | Applications: To calibrate temperature indicators, temperature controllers, data loggers & various field instruments & monitors
- RTD Calibrator | RTDPT100 Calibrator | RTD Temperature Calibrator Simulator | Portable Calibrator | Field Temperature Calibrator Indicator | RTD Comparator | PID Temperature Controller

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Ace Instruments |
| Manufacturer | Ace Instruments |
| Country of Origin | India |
| Number of Memory Sticks | 1 |
| Item Weight | 250 g |
| Package Dimensions | 5 x 5 x 5 cm; 250 g |
| Item part number | IK-Hold-CAL-404 |
| Are batteries included? | No |

## Product Details

- **Brand:** Ace Instruments
- **Item Weight:** 250 Grams
- **Display Type:** LCD with backlight
- **Manufacturer:** Ace Instruments

## Images

![RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404 - Image 1](https://m.media-amazon.com/images/I/61tf2xxjgEL.jpg)
![RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404 - Image 2](https://m.media-amazon.com/images/I/51Jv6vsF4ML.jpg)
![RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404 - Image 3](https://m.media-amazon.com/images/I/51jQErKwcEL.jpg)
![RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404 - Image 4](https://m.media-amazon.com/images/I/51ebDTEkXvL.jpg)
![RTD Temperature Calibrator for Field Temperature Indicators, Temperature Controllers, PID Controllers, Flameproof Temperature Indicators Model: AI-CAL-404 - Image 5](https://m.media-amazon.com/images/I/51j-JmBDLML.jpg)

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-06*