# F&F PZ-831RC-B Three-State Liquid Level Control Relay 230V AC 1-100kOhm

**URL:** https://aio.lv/en/product--ff-pz-831rc-b--12472786
**Data updated:** 2026-05-18 09:41 (EEST)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** PZ-831RC-B
**EAN:** 5908312592556
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 78.99 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 65.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-pz-831rc-b--12472786

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

The F&F PZ-831RC-B is a three-state liquid level control relay designed for monitoring and maintaining conductive liquid levels in tanks or wells. It operates at 230V AC with an adjustable sensitivity range of 1-100kOhm. This device ensures reliable automation for pump systems, preventing dry running or overflow by managing three distinct liquid levels through connected probes.

## Long description

The F&F PZ-831RC-B is a professional three-state liquid level control relay engineered to monitor and manage conductive liquids in tanks, wells, or reservoirs. Operating on a 230V AC power supply, this device provides precise control over pump systems by utilizing probe sensors to detect three distinct liquid levels. It is an essential component for automated fluid management, ensuring that systems operate efficiently while preventing issues such as dry running or tank overflow.
Advantages
This relay offers high operational reliability through its adjustable sensitivity range of 1-100kOhm, allowing it to be calibrated for various types of conductive liquids. By managing three specific levels, the device provides a sophisticated control logic that can trigger pumps or alarms based on the exact state of the fluid. Its robust design ensures long-term performance in industrial and residential water management applications, reducing the need for manual monitoring and minimizing the risk of equipment damage.
Suitable for
Automated control of pumps in wells and water tanks
Monitoring conductive liquid levels in industrial reservoirs
Preventing dry running of pumps in irrigation systems
Managing overflow protection for storage tanks
This device is not suitable for non-conductive liquids such as oils, fuels, or distilled water, as it relies on the electrical conductivity of the fluid to function. It is also not intended for use in environments with extreme chemical corrosivity that could damage the probe sensors.
Key specifications
Supply voltage: 230V AC
Sensitivity range: 1-100kOhm (adjustable)
Control type: Three-state liquid level monitoring
Compatibility: Conductive liquids
To use the relay, connect the device to the power supply and install the required conductive probes at the desired minimum, maximum, and common reference levels within the tank. Once installed, adjust the sensitivity dial to match the conductivity of the liquid being monitored. The relay will then automatically switch the connected pump or alarm system based on the signals received from the probes.
What to consider before purchase
Ensure the liquid being monitored is electrically conductive
Verify that the tank material is compatible with the probe installation
Check that the pump power requirements align with the relay output capacity
For optimal performance, ensure that the probe cables are kept away from high-voltage power lines to prevent electromagnetic interference. Regularly inspect the probes for mineral buildup or corrosion to maintain accurate level detection.

## FAQ

### How much does the F&F PZ-831RC-B Liquid Level Control Relay cost, and is it available for purchase?

The price is 78.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 21.07.2026 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 F&F PZ-831RC-B Liquid Level Control Relay 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 FF 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 FF 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/12472786/68791933_large.webp