
Strong Compatibility
TP-PDA works with many brands and types of electric meters and heat meters, supports common metering protocols, and adapts to field teams using different terminal devices.
The TP-PDA Series Optical Probe is designed for handheld terminals, tablets, PDAs and laptops used in field meter communication. It supports RS232, RS485, TTL and USB interface options, multiple meter protocols and broad compatibility with electric meters and heat meters.

TP-PDA works with many brands and types of electric meters and heat meters, supports common metering protocols, and adapts to field teams using different terminal devices.

USB, RS232, RS485, TTL and Type-C options help the probe integrate with handheld terminals, tablets, laptops and customized collection devices.

Communication rates from 300 to 115200 bps and transparent transfer mode support smooth integration with meters and field reading software.

PC and impact ABS housing, strong magnetic adhesion and durable cable construction support reliable operation from -40 C to +70 C.
| Product Model | TP-PDA Handheld Terminal |
|---|---|
| Communication Interface | RS232 / RS485 / TTL / USB |
| Supported Standards | IEC 62056-21 / ANSI / ANSI-Type2 / DL/T-645 |
| Sub-Models | TP-PDA-IEC: IEC 62056-21 Mode C and E; TP-PDA-ANSI-N: ANSI C12.18; TP-PDA-ANSI-S: ANSI C12.18-2006 Type2; TP-PDA-IR645: DL/T-645-97/07 |
| Adaptive Terminal Options | TP-PDA-DP97 for Dolphin 9700; TP-PDA-MC75 for Motorola MC75xx; TP-PDA-iPad for Apple iPad; TP-PDA-IEC-T and TP-PDA-645 for Tespro TA-262; TP-PDA-HTTP for Zhenzhong HHU Model 900; TP-PDA-HTTJ for JieBao HHU Model 9800 / A188 |
| Maximum Baud Rate | 57600 bps in normal operation; maximum 115200 bps available |
| Connector | RS232-DB9 / USB-A / Type-C / customized connector |
| Cable Length | 2 m standard; 3 m / 4 m / 5 m optional |
| Sensor Light Wavelength | ~900 nm |
| Fastening | Strong magnetic adhesion in accordance with IEC 62056-21 |
| Magnet Holding Power | N40 / N52 optional |
| Operating Temperature | -40 C to +70 C |
| Dimensions | Optical port 32 mm diameter / L45 x H30 mm |
| Weight | 88 g |
| Enclosure Material | Impact ABS + PC housing, PC enclosure material |
| Protection Class | IP54 |
TP-PDA helps utilities standardize optical meter communication across field teams using tablets, PDAs and laptops. Its multi-interface design reduces hardware replacement needs, supports legacy meters and improves compatibility during smart metering upgrades.
TP-PDA is used for optical meter communication with handheld terminals, tablets, PDAs, laptops and customized field collection devices.
The series supports RS232, RS485, TTL, USB, USB-A, Type-C and customized connector options depending on project needs.
The series supports IEC 62056-21, ANSI C12.18, ANSI C12.18-2006 Type2 and DL/T-645 variants depending on sub-model.
Please contact Sales for a discount and project quotation.