
Product Conditions
| Condition | Definition |
|---|---|
| Brand New | New in Retail or Factory Packaging where applicable. Simple Cell does not hold itself as an authorized reseller or distributor of any brands and any original manufacturers warranty might not be valid. |
| Grade A | Fully Functional. Item is in Flawless Condition, Retail or Factory Packaging could be missing or damaged. |
| Grade A- | Fully Functional. Item is in Excellent Condition and will show no signs of use when held at an arms length. Retail or Factory Packaging could be missing or damaged. |
| Grade B | Fully Functional. Item is in Good Condition and will show some signs of use. May contain light screen scratches and have noticeable signs of use. Retail or Factory Packaging could be missing or damaged. |
| Grade C | Fully Functional. Item is in Fair Condition and will show heavy signs of use, Retail or Factory Packaging could be missing or damaged. |
| Incomplete | Item will be missing some accessories, Retail or Factory Packaging could be missing or damaged |
| Defective | Item is not functioning as supposed to. |
| Untested | Items have not gone through any inspection or testing. These items will range from open box working to defective and missing accessories. Items bought in this condition are as-is and can not be returned. |
Description
The SECRUI Wireless Doorbell and Receiver with 1000 Foot Range. Model: (M520+F55). Black version.
Features:
- Plug‑in receiver connects directly to a standard outlet, eliminating the need for wiring.
- FM‑signal based transmission delivers up to 1000 ft line‑of‑sight range with one‑to‑one pairing to prevent cross‑interference.
- 58 pre‑loaded melodies, including a holiday ringtone, and five adjustable volume levels provide customizable alerts.
- ABS housing rated IP55 offers dust protection and water resistance, suitable for temperatures from –4 °F to 140 °F.
- Transmitter draws power only when pressed, supporting up to three years of battery life; the system can be expanded with multiple buttons and receivers.
