Short answer: The GEYA GRL8 is a DIN-rail liquid level control relay for conductive liquids, with a wide AC/DC 24–240 V supply and one 10 A SPDT output. AutomationBotX sells the GRL8-01 and GRL8-02 versions, with or without a probe kit, from $36.85. View the product (SKU ABX-0561).
Key data from the product listing
| Brand / model | GEYA GRL8 (GRL8-01, GRL8-02) |
|---|---|
| Function | Liquid level controller, pump up (fill) or pump down (drain) |
| Supply voltage | AC/DC 24–240 V, 50/60 Hz, galvanically separated |
| Output | 1 SPDT (changeover) contact, 10 A / AC1 |
| Sensitivity | Adjustable by potentiometer, 5–100 kΩ |
| Output time delay | Adjustable; the description gives 0.1–10 s and the spec table 0.5–10 s |
| Indication | LED for relay status |
| Mounting | DIN rail, 1 module wide |
| Store SKU | ABX-0561 |
Versions and prices
| Version | Control mode (per listing) | Price |
|---|---|---|
| GRL8-01 | 2-level control | $36.85 |
| GRL8-01 with sensor | 2-level control, with probe kit | $44.36 |
| GRL8-02 | 2-level or 1-level control | $39.38 |
| GRL8-02 with sensor | 2-level or 1-level control, with probe kit | $57.44 |
Prices in USD as listed on 30 October 2026; the product page always shows the current price.
Questions and answers
What is the difference between GRL8-01 and GRL8-02?
According to the listing, the GRL8-01 works in 2-level control mode (start and stop at two probe heights). The GRL8-02 can be set to 2-level or 1-level control.
What is it used for?
The listing names level monitoring in wells, basins, reservoirs and tanks. You choose PUMP UP to fill a tank or PUMP DOWN to drain a sump.
Which liquids does it work with?
It is a conductive (resistive) level relay: the probes sense the liquid through its resistance, adjustable from 5 to 100 kΩ. Check that your liquid is conductive and inside that range.
Can it switch a pump directly?
The output is one SPDT contact rated 10 A / AC1 (resistive load). Compare that rating with your pump or contactor coil before wiring; for larger motors, the relay normally drives a contactor.
Does it run on 24 V DC control power?
Yes. The listing gives a wide supply range of AC/DC 24–240 V, so the same unit fits 24 V DC panels and 120/230 V AC panels.
Can I order several for a project?
Yes. For quantity pricing, request a written quote on our Wholesale & Bulk Orders page.
Related part number
- ManHua SSRC-04 liquid level controller (230 V AC, 8 A)
- Free 4-20 mA scaling calculator for analog level transmitters
Shipping and returns
- Shipping to the United States is free. Shipping to Latin America and the Caribbean is 20% of the subtotal (minimum $25); other countries 25% (minimum $30). Delivery times vary by item and are shown at checkout or on request.
- Returns are handled under our refund policy.