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Optical Inspection Probe
Optical Inspection Probe

Communication Optical Probe

Product ID: TP-485 Series

TP-485 Series Optical Probe are designed with RS485 interfaces in 2013 by Tespro China. The up-to-date technologies and the general application property for almost all kinds of electric meters and thermo meters make it very unique among the optical probe families.

  • Baud rate

    300-115200bps

  • Standard

    IEC 62056-21/ANSI/ANSI-Type2/DL/T-645

  • Interface

    RS485

  • Temperature

    -40℃~+70℃

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Features


Product Introduction

TP-485 Series Optical Probe are designed with RS485 interfaces in 2013 by Tespro China. The up-to-date technologies and the general application property for almost all kinds of electric meters and heat meters make it very unique among the optical probe families. The TP-485 series optical probe is powered by an external power, supporting different types of connectors, and accepts customized plugs from customers. Tespro China insists on using top materials to ensure the high reliability and performance of the optical probe. For the past 20 years, as always, adhering to quality is our pursuit.

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Strong Compatibility

It has strong compatibility, being compatible with all brands and types of meters, fully compliant with different protocols, and supporting all operating systems.

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Support Ultra-high Speed

It supports ultra-high speed, with communication rates up to 300 - 115200 bps, and uses transparent transmission mode for seamless integration with instruments.

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Excellent Performance in Harsh Environment

Made of 100% PC material, the optical probe performs excellently in harsh environments. With top - level enclosure material, a strong magnet, and a soft, durable cable

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Support Customization

It supports customization, with competitive pricing, timely delivery, a good reputation, 24 - hour response, 12 - month warranty, continuous upgrades, permanent technical support, and OEM/ODM services.

Tech Specs


Metering Equipment Technical Data

Category Items Features
Basic Information Communication Interface RS485
Supported Standard IEC 62056-21/ANSI/ANSI-Type2/DL/T-645
Model Specifications Sub-Models TP-485-IEC:Compliant with IEC-62056-21(ModC&E)
TP-485-ANSI-N:Compliant with ANSIC12.18
TP-485-ANSI-S:Compliant with ANSIC12.18-2006 type2
TP-485-IR645:Compliant with DL/T-645-97/07
Maximum B.R. 57600 in normal and max.115200 available
Connector Aviation plug/(Customized)
Sensor Light Wave Length ~900 nm.
Cable Cablelength 2M in normal and 3M/4M/5M for option
Fastening Strong magnetic adhesion (in accordance with IEC 62056-21)
Mounting Magnet Holding Power N40/N52(Optional)
Environment Application temperature:-40℃~70℃ in normal
Dimensions Diameter&Height Optical port 32mm Diameter/L45×H30mm
Weight 88 gr
Enclosure Material ABS+PC
Protection Class IP 54

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Reliable Optical Communication for Smart Metering

Modern AMI systems require stable and accurate data capture at the meter level. Manual meter reading was time-consuming and error-prone.

Tespro's optical probes, including the TP-BT and USB series, enabled automatic data retrieval via optical ports, supporting various meter brands and protocols. Bluetooth and USB models offered flexibility for both field and desktop use.

Case


Product Case

A regional utility company in North America faced a critical hurdle in managing energy data across its service area: its network of electricity and thermal meters was scattered across residential neighborhoods, commercial buildings, and industrial zones, each with varying hardware configurations. Existing optical probes failed to sync seamlessly with the company’s RS485-based central data platform, requiring time-consuming manual adjustments for each meter type and leading to fragmented, delayed data collection that impaired load balancing and billing accuracy. The team needed a solution that could unify data capture across diverse locations while integrating smoothly with their existing backend system.​

 

Tespro’s TP-485 Series Optical Probe addressed these core challenges with its purpose-built design. Its native RS485 interface enabled direct, stable connection to the utility’s central platform, eliminating the need for cumbersome converters or protocol adjustments that had previously caused data gaps. The option for customized aviation plugs ensured a perfect match with the company’s mixed fleet of meters, resolving compatibility issues that had plagued cross-region data collection.​

 

Beyond seamless integration, the probe’s practical features streamlined field operations. Strong magnetic adhesion allowed technicians to mount the device quickly and securely on any meter without tools—critical for navigating tight spaces in utility closets or outdoor meter boxes across different environments. Flexible cable length options adapted to varying installation distances, reducing the need for extra wiring or on-site modifications. Its durable ABS+PC enclosure and IP54 protection rating ensured reliable performance in both indoor and outdoor settings, from busy urban commercial districts to suburban residential areas.​

This case underscores the TP-485’s value as a versatile solution for utility-scale energy data capture, demonstrating how native interface compatibility and adaptable design can overcome the challenges of distributed metering environments.​

Frequently Asked Questions

To help you better understand our products' performance, compatibility, and usage, we’ve compiled answers to commonly asked questions. If your inquiry isn’t listed below, feel free to contact us directly for further assistance.

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  • Are these products compatible with my current system?

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  • Can data be transmitted remotely?

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