When you're choosing a used power meter for energy management, the decision often comes down to how much connectivity and control you want versus how much you want to spend. This head-to-head compares two pre-owned units: the GE PQMII-T20-C-A POWER QUALITY METER 8A 250VAC at USD 649.99 and the Schneider Electric PM8240 Power Quality Meter PowerLogic METSEPM8240 at USD 412.50. Both handle power-quality monitoring, but they make different trade-offs between price and feature density.
Quick verdict
If your installation needs extra connectivity and control features, the GE PQMII-T20-C-A is the more complete package at its higher listed price. If you want a Schneider Electric power-meter platform and are willing to trade some connectivity for a lower price, the Schneider PM8240 is the more direct pick. The $237.49 gap between the two means the GE needs to earn its place through its additional control features.
Comparison at a glance
| Product | Listed price | Notable details |
|---|---|---|
| GE PQMII-T20-C-A POWER QUALITY METER 8A 250VAC | USD 649.99 | Used GE Multilin PQM II; RS485 Modbus RTU; three 4-20 mA analog outputs; four programmable digital/logic inputs |
| Schneider Electric PM8240 Power Quality Meter PowerLogic METSEPM8240 | USD 412.50 | Used Schneider Electric PowerLogic PM8000-series power meter / power monitoring module |
Where each product wins
- The GE PQMII-T20-C-A wins for integration flexibility: it can feed multiple systems from one meter.
- The Schneider PM8240 wins for platform fit and lower listed price: it carries the PowerLogic name and costs less than the GE.
Product notes
GE PQMII-T20-C-A POWER QUALITY METER 8A 250VAC
From GE Multilin's PQM II line, this used power quality meter combines a 40-character backlit LCD with RS485 Modbus RTU, making it a good choice for control-room communication. It also carries three 4-20 mA analog outputs and four programmable digital/logic inputs, so it can send analog telemetry and accept external logic signals in one chassis. The current-input side accepts 1A or 5A secondary, software-selectable, while voltage inputs can be connected directly up to 600 VAC (or through VTs for higher voltages), giving it flexibility in retrofit panels. The control-power input accepts 90-300 VDC or 70-265 VAC. That feature set explains why it sits at the higher end of this pairing. The trade-off is the higher listed price: if you don't need the extra I/O or the Modbus channel, you're paying for capability you may not use.
Schneider Electric PM8240 Power Quality Meter PowerLogic METSEPM8240
This Schneider Electric unit is a used PowerLogic PM8000-series power meter / power monitoring module, with MPN METSEPM8240. It is the lower-price choice in this head-to-head and still gives you the PowerLogic platform. The description describes the product as "100% genuine" and includes a video showing functionality, but the core appeal is a dedicated power meter module that monitors power quality rather than a multi-output I/O hub. One concrete limitation: the description states that destination-country taxes and import duties are to be paid by the buyer and are not included in the listed price, so factor that into your total cost. If your energy-management setup needs only a power meter without extra analog and digital I/O, this is the more straightforward route.
Final choice by use case
Pick the GE PQMII-T20-C-A when you need a single meter that can talk back to a controller or communication network, send transduced analog values, and accept programmable inputs. Pick the Schneider PM8240 when you want a lower-price Schneider Electric power meter and don't need the GE's additional analog and digital I/O complement.
