Finnex HMS-200S 200 W Digital Titanium Aquarium Heater

Exact-model photograph is not verified. Text-only model-reference page. The registered official HMS family visual shown with the full assessment depicts shared series components but does not identify the 200 W size, its dimensions or an offered package; it is not used as a photograph of this exact assembly.

Finnex’s HMS manual lists the 200 W HMS-200S for 60–80 US gallons, with an 11.22-inch tube and longer controller leads than the 50 W row. The finder cannot enforce the published 60-gallon floor, and no individual retail package was established; this is a model-identification reference rather than a compatibility recommendation.

Search results may include other models. Confirm the exact model, applicable region, condition and included parts before ordering.

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Documented model details

• The manual assigns HMS-200S 200 W to 60–80 US gallons and lists 1.80 A at 115 V. Its tube is 11.22 inches; the power, controller-to-heater and sensor leads are listed as 55, 35.4 and 47 inches respectively.
• The HMS controller is specified for 50–94°F in 0.1°F increments, with ±0.5°F stated display accuracy. The HMS-200S uses a separate remote water sensor; its probe placement is a distinct setup task, not the internal-sensor design used by Finnex HMH models.
• Finnex describes the HMS family as titanium with a protective guard and freshwater/marine use, while specifying water above 150 ppm TDS. These points describe manufacturer documentation, not independent testing or a confirmed seller package.

Limits to weigh

• The finder’s maximum-only volume rule cannot enforce the HMS-200S’s 60-gallon lower bound. The 80-gallon upper endpoint is also the lower endpoint listed for HMS-300S, so the shared boundary does not make the two sizes interchangeable or establish a tank-specific choice.
• The 1.80 A value is referenced to 115 V and does not supply the full voltage/frequency label. No individual current HMS-200S Shop variant, retail SKU/UPC, exact revision or seller package was resolved; a bounded store/search omission is not proof of discontinuation.
• Finnex limits the HMS low-water warning/protection behavior to 58–92°F; outside that range the low-water system is disabled and heating may continue if the sensor is exposed. The family’s more-than-150-ppm TDS condition is not captured by the questionnaire.
• No wattage-marked HMS-200S product/package photograph or independent aquarium performance results were verified. This model-reference assessment is not a compatibility certification or heat-up guarantee.

Check before ordering

• Verify the label says HMS-200S / 200 W. Do not confuse it with the 200 W HMH configuration, which has a different sensor architecture, or with HMS-300S at the shared 80-gallon table boundary.
• Check physical clearance for the 11.22-inch tube and route the listed 55-inch power, 35.4-inch controller and 47-inch sensor cords without stretching or exposing the probe.
• Treat 60–80 US gallons as the maker’s stated band, not a guarantee for a particular room, target or livestock. Confirm the actual electrical nameplate and the included controller and remote probe in the offer; 1.80 A at 115 V is not a complete supply rating.
• Before operation, follow Finnex’s fully submerged installation and remote-sensor placement instructions, heed the restricted 58–92°F low-water protection band, confirm water exceeds 150 ppm TDS, and use the documented electrical safeguards.