The best automatic flush toilet sensor depends on whether you are upgrading a manual flushometer or a residential toilet. The Zurn and Sloan kits are designed to retrofit manual flush valves, while the Techo and KERDE kits offer automatic flushing for toilets. The timer listed below is not a flushing sensor, so it is included only as a bathroom accessory—not as a substitute for an auto-flush system. Check your toilet or flushometer type before choosing a kit.
| Product | Best suited for | Notable feature |
|---|---|---|
| Zurn AquaSense E-Z Flush | Manual flush valve upgrades | Touchless retrofit with metal cover |
| Sloan EBV-500-A | Manual flushometers needing an override | Infrared sensor and mechanical flush button |
| Techo Touchless Flush Kit | Adjustable automatic toilet flushing | Adjustable sensor and flush volume |
| KERDE Automatic Flusher | Battery-powered, touchless operation | Automatic and remote flush modes |
| Automatic Toilet Timer | Bathroom time reminders | Motion detection and timed alerts |
Zurn AquaSense E-Z Flush Retrofit Kit
The Zurn ZERK-CPM AquaSense E-Z Flush is a touchless retrofit kit for handle-operated manual flush valves. It is designed to replace hand-operated flushing with sensor activation and includes a metal cover in a chrome finish. Zurn says the kit installs in minutes and is intended to provide long-term service.
Best for: Buyers upgrading a compatible manual flush valve who want to reduce contact with the flush handle. It was selected because it directly addresses touchless conversion and includes a metal cover. Consider: This is a retrofit kit, not a complete toilet; confirm the existing flush valve is suitable before purchasing.
Sloan EBV-500-A Side-Mount Sensor
The Sloan EBV-500-A converts an existing manual flushometer to sensor operation. Its battery-powered infrared sensor enables hands-free flushing, while a mechanical override button provides a manual full flush when needed. The side-mount format is intended for retrofit use in commercial restrooms.
Best for: Buyers who want touch-free operation but also value a manual override option. Its combination of infrared sensing and a mechanical flush button distinguishes it from the other commercial retrofit option here. Consider: It is made for existing flushometers, so it is not a universal replacement for residential tank toilets.
Techo Touchless Toilet Flush Kit
The Techo kit is an automatic flusher for converting a manual toilet to hands-free operation. Its adjustable sensor is intended to help control activation range, and the product features also describe adjustable water volume to help prevent unwanted flushing and reduce water use. The manufacturer says installation takes about 10 minutes and lists an IP67 water-resistance rating.
Best for: Buyers seeking an adjustable sensor and flush-volume control. It was selected for those settings, which can help tailor operation to a bathroom’s layout. Consider: Installation time is the manufacturer’s estimate; actual setup may vary, and the product listing should be checked for toilet compatibility.
KERDE Automatic Toilet Flusher Kit
The KERDE CN27B uses optical sensing and lists a sensor range of 11.81 inches. It offers motion-activated flushing and a manual remote-flush mode, with a stated remote range of 120 inches. Battery power means the product does not require an outlet or electrical wiring, according to its features.
Best for: Buyers who want both automatic flushing and a remote-control option. It was selected for its two operating modes and battery-powered setup. Consider: Its listed sensor range is specific, so check the intended mounting position and toilet setup before buying; the listing says it is compatible with most toilets, not every toilet.
Automatic Toilet Timer With Motion Sensor
This device is a motion-activated bathroom timer, not an automatic toilet flusher. It detects occupancy, starts timing, and provides progressive reminder alerts at 5, 10, 15, and 20 minutes. A one-press mute button silences the current alert, and the product features describe a magnetic wall mount.
Best for: Buyers looking for bathroom time reminders rather than hands-free flushing. It is included to clarify a similarly worded sensor product in the supplied selection. Consider: Choose a dedicated flusher instead if your goal is automatic toilet flushing; this timer does not perform a flush.
Buying Guide: How To Choose An Automatic Toilet Flush Sensor
Do you have a flushometer or a tank toilet?
Start by identifying the flushing system. Zurn and Sloan are retrofit options for manual flush valves or flushometers. Techo and KERDE are presented as toilet flusher kits. These product types are not interchangeable, so compare the product’s installation requirements with your toilet before ordering.
Would you prefer a manual override?
The Sloan EBV-500-A specifically includes a mechanical full-flush override button. KERDE lists a remote manual flush mode. If manual control matters, compare how each product provides it. The Zurn listing emphasizes touchless conversion but does not specify an override feature.
What sensor adjustments matter?
Adjustable activation range can help limit unwanted triggers in a busy or compact bathroom. Techo describes adjustable sensor range and water volume; KERDE lists a fixed 11.81-inch sensor range. Choose based on the adjustments or range explicitly stated in the product features, and confirm mounting details in the listing.
How will the unit get power?
KERDE specifies battery power and no need for an outlet or wiring. Sloan also identifies its sensor as battery-powered. For other products, verify power requirements in the current product details rather than assuming they match another model.
Frequently Asked Questions
What does an automatic toilet flush sensor do?
It detects use or a user’s movement and triggers a flush without requiring the user to touch a handle or button. The exact sensing and flush method varies by product.
Can a flushometer retrofit kit be used on a tank toilet?
Not necessarily. Zurn and Sloan are described as retrofit products for manual flush valves or flushometers. Check the product’s requirements before purchasing for a tank-style toilet.
Is the toilet timer an automatic flusher?
No. The listed timer detects bathroom occupancy and gives time reminders. It does not flush the toilet.
Which listed product has a manual flush option?
Sloan lists a mechanical override full-flush button, and KERDE lists a manual remote-flush mode. These are different control methods, so compare the product details to determine which suits your setup.