# Electric Propeller Revolution Indicator 8521-FE150K | Nunotani Keiki

The Nunotani Keiki JIS Electric Propeller Shaft Revolution Indicator-8521-FE150K is a precision instrument designed for marine applications. This indicator provides accurate readings of propeller shaft revolutions, ensuring optimal performance and safety on vessels. Ideal for monitoring both astern and ahead r.p.m, this device is a crucial component for marine engineers and operators.

-   **Precise RPM Measurement:** Accurately measures propeller shaft revolutions from 0 to 100 r.p.m.
-   **Marine-Grade Design:** Built to withstand the harsh conditions of marine environments.
-   **Easy Installation:** Designed for straightforward integration into existing marine systems.
-   **Reliable Performance:** Ensures consistent and dependable readings for enhanced operational safety.
-   **Wide Application:** Suitable for various marine vessels, offering versatile use.

This indicator operates with a receiver voltage of 10v and a current of 5mA, providing precise readings at a speed of 120 r.p.m. The Nunotani Keiki JIS Electric Propeller Shaft Revolution Indicator-8521-FE150K is a vital tool for ensuring smooth and efficient marine operations. Its robust design and accurate performance make it an indispensable asset in any marine environment. For those seeking to enhance their marine operations with reliable and precise monitoring, the Nunotani Keiki JIS Electric Propeller Shaft Revolution Indicator-8521-FE150K is the perfect solution. Contact [Ram Automations](mailto:info@ramautomations.com) for inquiries.

## Details

- **Price:** 999.0 USD
- **Vendor:** Ram Automations
- **Type:** Marine Electronics > Navigation Equipment > Revolution Indicators
- **Tags:** 8521-FE150K, marine, marine equipment, Nunotani Keiki, propeller shaft revolution indicator, RPM indicator

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Used | 999.00 USD | In stock |

## Images

- Electric Propeller Revolution Indicator 8521-FE150K | Nunotani Keiki-Ram Automations

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> Source: [Ram Automations](https://ramautomations.com/products/nunotani-keiki-8521-fe150k-indicator)
> Updated: 2026-09-18