Includes all taxes
Phone APP download: Search in google play or apple app store: "tuya" or "smart life" app

Attention:
This product is a unidirectional current, not a bidirectional current. It cannot be used in solar power generation. It is a forward current and will not generate negative current!
Purchase instructions: Please read carefully!
Basic version(GR2P): only prompt alarm not cut off power
WiFi version(GR2PW): only prompt alarm not cut off power
WiFi+Relay Version(GR2PWS): Prompt alarm and cut off power




















Explanation on wiring methods, magnetic retention relays, and automatic recovery of undervoltage and overvoltage
When this meter is first powered on, the built-in magnetic retention relay needs to be reset. During this period, it will be turned on for more than ten seconds and maintain the output (delay protection). Only when the startup is completed and the measurement interface is reached, can the over limit enable (such as overvoltage, undervoltage, overcurrent, and overpower protection functions take effect) and the normal working mode of the measurement data be achieved,
This meter can freely set the recovery time for undervoltage and overvoltage (1-99 minutes). When the voltage is restored, normal power supply will be restored within the time you set!
If you have any objections, please purchase with caution!
(In view of this, please strictly follow the wiring diagram in this table to connect the air switch at the output end, and wait for the meter to start before turning on your device's air switch.)

Attention: Internal Latching Relay
GR2P and GR2PW do not include Latching Relay
GR2PWS includes Latching Relay

Firmware upgrade, WiFi networking
We will release new firmware from time to time, WIFI remote upgrade, please click on the upper right corner of the APP to view >> device upgrade >> update, you can upgrade the firmware



Q&A
1. Are there any charges for data cloud?
A: It's free!
2. What APP is supported and where can I download it?
A: Currently Tuya APP and Smart Life APP are supported, which can be downloaded in major application markets (Google Play for Android, Apple App Store for IOS)
3. Does this currently support computer APP?
A: The WIFI version does not support computer APP, but the Bluetooth version can support computer APP (please check the description of the Bluetooth version for details)
4. What types of mobile phones are supported?
A: Currently support Android phones and Apple phones!
5. How big is the shunt?
A: The built-in 100A shunt does not require an external CT!
6. Is it single-phase or three-phase?
A: At present this is a single-phase electricity!
7. Is this product a 2.4G or 5G network?
A: This model is the WIFI version, supports 2.4G network, currently does not support 5G!
8. Regarding the relay, what is the difference between the WIFI version and the Bluetooth version?
A: Built-in 100A relay, WIFI version include relay, Bluetooth version does not include relay.
9. Does the product have power-off memory?
A: Data has power-off memory, switch mode has no power-off memory. Once the power is turned on, the relay is closed, and the screen will normally display on that the connection is not disconnected!

About alarm event notification settings


















Product size
Length X Width X Height:80X36X45mm

Product List
1. GR2P voltmeter without WiFi modules, without relay switchesX1
2. User Manual x1

Product List
1. GR2PW voltmeter Including WiFi module, Without relay switches X1
2. User Manual x1

Product List
1. GR2PWS voltmeter Including WiFi module, relay switch X1
2.User Manual x1
3.include Latching Relay(Inside the product) x1

Payment Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are committed to providing a safe, secure, and seamless payment experience for our customers.
1. Accepted Payment Methods
We accept the following payment options:
Major Credit & Debit Cards (Visa, MasterCard, American Express)
Secure Online Payment Gateways (such as PayPal, Stripe, or other providers available at checkout)
Any additional payment methods displayed during checkout
All payments must be completed in full at the time of purchase.
2. Secure Transactions
All transactions are processed through encrypted and secure payment systems to protect your personal and financial information. We do not store your full payment details on our servers.
3. Currency
Prices are displayed in the currency indicated on the website. If you are purchasing from another country, your bank may apply currency conversion fees.
4. Order Confirmation
Once your payment has been successfully processed, you will receive an order confirmation email containing your purchase details.
5. Failed or Declined Payments
If your payment is declined, please verify your billing information or contact your bank. Orders will only be processed after successful payment confirmation.
6. Fraud Prevention
BILLIONS BIRDS reserves the right to cancel or refuse any order if fraud or unauthorised activity is suspected.
Delivery Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are dedicated to delivering your orders safely and efficiently.
1. Order Processing
All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.
2. Shipping Times
Estimated delivery times vary depending on your location:
Domestic Shipping: 3–7 business days
International Shipping: 7–15 business days
Please note that delivery times are estimates and may vary due to customs procedures, carrier delays, weather conditions, or other unforeseen circumstances.
3. Shipping Costs
Shipping fees are calculated at checkout based on your location and selected shipping method. Any customs duties, taxes, or import fees are the customer's responsibility.
4. Tracking Information
Once your order has been shipped, you will receive a confirmation email with tracking details (if available) so you can monitor your package.
5. Delivery Issues
If your order is delayed, lost, or arrives damaged, please contact us within 7 days of the expected delivery date. We will work with the shipping carrier to resolve the issue as quickly as possible.
6. Incorrect Shipping Information
Customers are responsible for providing accurate shipping details at checkout. BILLIONS BIRDS is not responsible for orders shipped to incorrect addresses provided by the customer.
Refund Policy – BILLIONS BIRDS
At BILLIONS BIRDS, customer satisfaction is our top priority. If you are not completely satisfied with your purchase, we’re here to help.
1. Return Eligibility
You may request a return within 14 days of receiving your order. To qualify for a return:
The item must be unused, unworn, and in the same condition as received.
The item must be in its original packaging.
Proof of purchase (order confirmation or receipt) is required.
Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.
2. Non-Refundable Items
The following items are non-refundable:
Final sale or discounted items
Gift cards
Items damaged due to misuse, negligence, or improper care
3. Return Process
To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.
Unless the item is defective or incorrect, customers are responsible for return shipping costs.
4. Refund Processing
Once we receive and inspect your returned item:
We will notify you of the approval or rejection of your refund.
If approved, the refund will be issued to your original payment method within 5–10 business days.
Please note that banks or payment providers may require additional time to process refunds.
5. Damaged or Incorrect Items
If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery and provide clear photos of the product and packaging. We will arrange a replacement or full refund at no additional cost.
6. Late or Missing Refunds
If you have not received your refund:
Check your bank account again.
Contact your credit card company or payment provider.
If the issue persists, don't hesitate to contact our support team for assistance.
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