# Single-phase PV Smart Meter Growatt SPM-C for 1-phase systems 5A–60A

**URL:** https://aio.lv/en/product--growatt-nv821136--10458095
**Data updated:** 2025-12-30 08:41 (EET)
**Category:** Power Inverters
**Manufacturer:** Growatt
**Manufacturer code:** NV821136
**EAN:** 9990000821136
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 99.99 €
**Prices and availability valid until:** 2026-07-22 23:59
**Price without VAT (21%):** 82.64 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--growatt-nv821136--10458095

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 02.07.2026 | free |
| Pickup points | 07.07.2026 | 1.89 EUR |
| Courier delivery to door | 07.07.2026 | 4.99 EUR |

## Summary description

Growatt SPM-C is a single-phase PV smart meter designed for monitoring photovoltaic system performance with an operating current range of 5A to 60A. It provides accurate energy measurement for one-phase installations, enabling consumption and production tracking, remote monitoring integration and improved system management. Suitable for residential and small commercial PV setups.

## Long description

Growatt SPM-C is a single-phase PV smart meter for 1-phase systems with an operating current range of 5A–60A. It is designed to monitor self-consumption and limit grid export by accurately measuring voltage, current, power and frequency in residential and small commercial photovoltaic installations. The meter is compatible with Growatt PV inverters and integrates via RS485 using the Modbus RTU protocol.
Advantages
The smart meter delivers class 1 measurement reliability with separate accuracy values for voltage/current (0.5%), power (1%) and frequency (0.2%). It includes an LCD display for local readings and is compact for DIN-rail installation. Communication is provided over RS485 at 9600 bit/s, enabling remote monitoring and control when paired with compatible Growatt inverters.
Suitable for
Residential single-phase PV systems
Small commercial photovoltaic installations
Self-consumption monitoring and grid export limitation
Integration with Growatt inverters via Modbus RTU
Key specifications
Rated voltage: AC 230/400 V (L-N voltage range AC 184 V–276 V)
Current: 5 A (minimum); current range 5 A–60 A
Frequency: 50/60 Hz
Number of phases: 1 (1P2W)
Accuracy class: Class 1 (voltage/current 0.5%, power 1%, frequency 0.2%)
Interface: RS485, baud rate 9600 bit/s, Modbus RTU
Installation: DIN-rail mounting
Dimensions: 99 × 63 × 36 mm; weight: 223 g
Protection class: IP51; operating temperature -25°C to 55°C; humidity \<75%RH
Consumption: \<2 W / 10 VA; RS485 cable length: 15 m
Certifications: CE, RoHS
How to use
Mount the Growatt SPM-C on a standard DIN rail in the distribution enclosure and connect the line and neutral according to the wiring diagram. Connect the RS485 communication cable to the inverter or monitoring gateway and set the Modbus parameters (baud rate 9600, Modbus RTU) to match the connected device. After powering the meter, verify readings on the LCD and confirm communication with the inverter for self-consumption monitoring and export limitation functions.
Usage recommendations
Install and commission the meter in accordance with local electrical codes and the manufacturer’s wiring instructions. Use the RS485 cable length within the specified 15 m and ensure proper grounding. For integration with Growatt inverters, verify Modbus addressing and communication settings before enabling grid export limitation features.

## FAQ

### How much does the Growatt SPM-C single-phase PV smart meter cost, and is it available for purchase?

The price is 99.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 02.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Growatt SPM-C single-phase PV smart meter be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Growatt products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Growatt service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/10458095/52490168_large.webp