Intermatic DT200LT Digital Astronomic Landscape Timer
- Number Of Settings: 5
- Number Of Packs: 1
- Material Type: Plastic
- Manufacturer Warranty Description: See manf description.
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A dependable choice for landscape lighting or pool circuits that need to follow the actual sunrise and sunset, with an enclosure rated for outdoor mounting.
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ASIN: B01N29QGQ6Model: DT200LTCategory: Outlet Timers
Overview
A digital timer for low-voltage landscape lighting, pool pumps and outdoor circuits that calculates sunrise and sunset automatically rather than needing manual seasonal adjustment, housed in an indoor/outdoor rated enclosure.
The astronomic function is the core feature here: once set to a location, it recalculates dusk and dawn times through the year on its own, which a standard digital timer cannot do without repeated manual resets. It is rated for low-voltage transformer loads up to 1200W and built into a 3R enclosure for outdoor mounting, with an operating range down to -40F. Two included LR44 batteries hold the programmed settings for up to three months if power is lost.
- Astronomic self-adjusting sunrise/sunset
- Up to 1200W low-voltage transformer rating
- 3R indoor/outdoor enclosure
- -40F to 122F operating range
Who it's for
Suited to landscape lighting and pool pump circuits that should track real sunrise and sunset without a homeowner resetting it each season. It is rated for low-voltage transformers, so it fits lighting circuits behind a transformer rather than direct loads beyond its stated capacity.
Pros and cons
- Self-adjusting sunrise/sunset, no manual seasonal resets
- Rated for low-voltage transformers up to 1200W
- 3R enclosure rated for outdoor mounting
- Retains settings up to 3 months on battery backup
- Limited to low-voltage transformer loads, not general circuits
- One-push override is the only quick manual adjustment
Performance notes
The self-adjusting astronomic clock removes the twice-yearly manual reset that daylight saving and shifting sunset times otherwise force on a fixed timer, and the auto DST option handles the clock change on its own. The 3R enclosure and -40F to 122F operating range are what let it sit outdoors through a full year of weather.
Specifications
| Brand | Intermatic |
|---|---|
| Model | DT200LT |
| Dimensions & fit | |
| Item Weight | 0.4 pounds |
| Screen Size | 2 inches |
| Item Dimensions D X W X H | 2.2 × 3.1 × 3.2 inches |
| Power & efficiency | |
| Battery Type | Alkaline Manganese (LR44) |
| Battery Life | 91 days |
| Construction & materials | |
| Material Type | Plastic |
| Color | Color |
| Included components | |
| Number Of Packs | 1 |
| Unit Count | 1 |
| Included Components | DT200LT |
| Warranty & support | |
| Manufacturer Warranty Description | See manf description. |
| Other details | |
| Number Of Settings | 5 |
| Number Of Items | 1 |
| Item Highlight | Precision Astronomic Control Outdoor In 3R Enclosure And For Indoor Lighting, Simple Setup With Self-Adjusting Sunrise/Sunset |
| Item Type Name | Intermatic DT200LT Digital Astronomic Landscape Timer |
Frequently asked questions
Does the Intermatic DT200LT need to be reset for daylight saving time?
No, it has a factory-set auto DST option that adjusts automatically.
What can it power?
It is rated for low-voltage transformers up to 1200W, suited to landscape lighting and pool pump circuits.
What happens if the power goes out?
Two included LR44 batteries hold the programmed settings for up to three months without power.