What it is and why it matters
Novopro LV-4T is an electronic
hot water meter that measures not only water volume but also water temperature.
It helps you track the actual quality of domestic hot water supply and keep
temperature-based records for further analysis.
Who it's for
- Apartments with centralized hot water
supply where water temperature may fluctuate.
- Owners who want to see the real water
temperature and keep temperature-zone statistics.
- Replacement for a standard mechanical meter
(please check your existing metering node and required fittings).
How temperature-based registers work
- The meter stores the total hot water volume
(GV) and keeps separate registers V1–V5 by temperature zones.
- It also calculates "Corrected
Volume" (CO) using the formula from the passport: CO = 0.7·V2 +
0.8·V3 + 0.9·V4 + 1.0·V5.
- Important:
billing and acceptance of specific values depend on your utility provider.
In many cases you submit a single reading — the total volume (GV).
What's in the box
- LV-4T meter — 1 pc
- Passport/user instructions — 1 pc
- Packaging box — 1 pc
Note: union
nuts/fittings, shut-off valve and a strainer may be required separately —
selected to match your installation.
Optional installation and utility registration in Kyiv (priced separately)
Mastergaz can install the
meter and help prepare/submit documents for utility registration in Kyiv.
Service cost and fittings are calculated separately based on site conditions.
- Installation/replacement in Kyiv.
- Registration support for Kyiv utilities
(Kyivteploenergo / Euro-Reconstruction / Kyivvodokanal).
- We can advise which reading your provider
typically expects (often the total volume GV).
Click "Request a
quote" or choose the relevant service in "Related products"
below.
Key specifications
- Flow rates: Q1 0.02; Q2 0.032; Q3 1.6; Q4
2.0 m³/h.
- Accuracy class: 2. MPE: ±3% (upper zone),
±5% (lower zone).
- Water temperature class: T90. Temperature
indication accuracy is specified for 29–56°C and not more than ±0.5°C.
- Temperature is measured only when water
flows through the meter.
- Power: built-in 3.6 V lithium battery (AA
type), service life without replacement — at least 5 years.
Warranty & documents
- Warranty: 30 months from commissioning, but
no more than 36 months from the date of sale.
- Verification interval: 4 years.
- Type Examination Certificate:
UA.TR.113-0753-24 (valid until 31 Oct 2034).
Why Mastergaz
- Recognized as a critically important
enterprise for ensuring essential services during the special period
(Minregion order dated 23.01.2026 No.125).
- Official paperwork, transparent terms,
messenger support.
How to order
- Click "Add to cart" and place the
order (the price is for the product only).
- If you need installation/registration,
click "Request a quote" or message us in Viber/Telegram.
- Arrange delivery and/or a convenient
technician visit time.
Nominal flow rate, m3/h
1.5
Maximum flow rate, m3/h
3
Maximum temperature, °C
90
Relative measurement error, %
Qt - Qmax ± 2%
Qmin - Qt ± 5%
Warranty period, months
30
Чудовий пристрій! Радий, що знову бачу в продажу
через 4 года прошел поверку
Нам Мастергаз установил этот многотарифный счетчик на горячую воду в 2018-м году. До этого стоял Архимед. Заменили. Существенная экономия.
Current equipment sales: meters, water filters and cartridges. Availability, delivery method, timing and the final order are confirmed by the operator before dispatch. In-person office reception is temporarily suspended; collection is possible only after separate confirmation.
Payment
- Online by Visa/MasterCard — via the secure LiqPay gateway; card details are entered on the LiqPay payment page and are not stored on our website. Payments are protected in accordance with the PCI DSS standard.
- PrivatPay (if available) — payment with confirmation in Privat24 without entering the card number.
- Cash — upon pickup / cash on delivery (if the option is available for your order).
- Bank transfer for legal entities — invoice from the manager (sent by email).
- Refunds: in case of cancellation/return, refunds are made using the same payment method (for card payments — to the same card). Credit time — up to 3 banking days after acceptance of the return/processing of the cancellation. Procedure details are available on the «Warranty» page.
Delivery
- Pickup (Kyiv): 6A Larysy Rudenko St., office 623 (Poznyaky metro station, Colosseum Business Center).
- Across Ukraine: delivery by «Nova Poshta» according to carrier rates; estimated time — 1–3 days.
- Confirmation and tracking: the manager confirms shipment and provides the TTN; you will receive an SMS about the arrival of the order.
- Storage at the branch: free for 3 working days.
- Inspection upon receipt: check integrity and completeness; in case of damage, draw up an act with the carrier and notify us.
Service warranty
Warranty is governed by the terms of the specific service and the public offer. Clause 9.2 of the current public offer remains in force. For a warranty enquiry, provide the service address, order details and a description of the issue to the contact center.
In-person office reception is temporarily suspended. Agree on the method of returning or handing over equipment before visiting or shipping it.
Product returns (14 days)
- Period: within 14 calendar days from the date of receipt (for remote purchases), unless a longer period is set by the seller.
- Conditions: the product has not been used; the original appearance/consumer properties/full set and labels are preserved; a receipt or invoice is available.
- Exceptions: returns do not apply to categories from the current CMU list (including: food products; medicines; personal hygiene products; cosmetics/cleaning products without protective packaging; goods cut or tailored to individual size, etc.).
Return procedure
- Notify us: info@mastergaz.com.ua, +38 (044) 585-29-41, +38 (044) 585-22-41.
- Prepare the product: original packaging, full set, documents.
- Send/deliver the product: Return address: 02140, Kyiv, 6A Larysy Rudenko St., office 623 (LLC «Mastergaz»); or «Nova Poshta», branch №23 (Kyiv) — with notification of the TTN number.
- Delivery costs for returning goods of proper quality are borne by the buyer (except in cases of our error/identified defect).
- Refund: by the same payment method (for card payments — to the same card), within up to 3 banking days after acceptance.
Product exchange
Exchange for a similar/other product is possible within 14 days with recalculation of the cost (if available).
If defects are found (warranty cases)
Within the warranty period, you are entitled to free repair or replacement; terms are agreed in accordance with the law and product availability. In case of a confirmed manufacturing defect, we will reimburse shipping costs.
·
Temperature-aware metering from 30°C with
separate registers (V1–V5)
·
“Corrected Volume” (CO) for quality
analysis (calculated by the meter)
·
Verification interval: 4 years
·
Battery powered (3.6 V typical service life 5 years).
·
Installation-friendly: no straight
sections before/after the U0, D0 meter are required; display module can be set
at 0–90°
·
Type Examination Certificate:
UA.TR.113-0753-24 (valid until 2034).
Operator of Technical Maintenance 
