A distinctive profile for modern bathrooms.
The compact 26 3/4-inch length and geometric form deliver a strong design statement without giving up the full smart-toilet feature set.
26 3/4 in longLCD display12 in rough-in
Why Hannover CH1-G
Architectural form. Full smart function.
Hannover CH1-G pairs a distinctive square silhouette with automatic operation, an LCD display and UL plus cUPC certification.
Documented electrical and plumbing compliance.
Hannover CH1-G carries UL certification for applicable electrical safety requirements and cUPC certification for plumbing compliance—stronger proof than presenting an electrical mark alone.
UL certifiedcUPC certified110VShock protection
Hands-free convenience
The lid and seat respond to you.
Hannover CH1-G supports automatic lid opening and automatic seat opening, with several control options for different household preferences.
- Radar-sensor lid openingApproach the toilet for touch-free cover operation.
- Foot-sensor lid and seat controlOpen the cover or seat without touching the fixture.
- Remote controlOpen or close the lid and seat directly from the remote.
- Adjustable sensing distanceFine-tune detection for the bathroom layout.
Hannover CH1-G · automatic lid & seat
Dimensions
Confirm the fit before ordering.
Professional installation is recommended. Verify rough-in, outlet location, water connection, pressure and clearances before purchase.
- Model
- Hannover CH1-G · White
- Overall dimensions
- 26 3/4 × 16 5/16 × 19 in
- Seat height
- 16 in
- Rough-in
- 12 in
- Electrical
- 110V · 1150W rated power
- Water pressure
- 0.14–0.75 MPa (approximately 20–109 psi)
- Flush volume
- Maximum 1.34 gal
- Certifications
- UL + cUPC
- Nozzle
- Medical-grade SS316 stainless steel
- Display
- LCD digital display
- Power-outage flush
- Yes
- User memory
- Up to 4 users
Full feature set
Comfort without sacrificing control.
Cleansing
Personal wash modes
- Rear, child and lady wash
- Oscillating and nano-aerated wash
- Adjustable pressure, temperature and nozzle position
- One-touch SPA mode
Hygiene
Cleaner by design
- Nozzle UV cleaning
- Water self-cleaning nozzle
- Medical-grade SS316 nozzle
- Deodorization
Comfort
Temperature control
- Adjustable heated seat
- Adjustable warm-air temperature
- Rapid drying
- Low-temperature scald protection
Convenience
Automatic operation
- Automatic lid and seat opening
- Foot sensor and remote operation
- LCD digital display
- One-touch night light
Efficiency
Smarter daily use
- Maximum 1.34 gal
- ECO seat mode
- Smart dormancy
- Power-off memory
Materials
Built for repeated use
- Antibacterial, wear-resistant ceramic glaze
- V-0 and 5VA fire-resistant material
- Soft-close mechanism
- Electrical shock protection
Installation layout
Plan the water and power before installation.
The diagram shows two supported angle-valve arrangements and the required 12-inch rough-in. Keep the power receptacle at least 10 inches horizontally from the water-valve line and use a grounded, GFCI-protected 110V outlet.
12 inDrain rough-in from finished wall
≥10 inHorizontal separation to outlet
2 optionsConcealed or exposed angle valve
Before installation
Four things to confirm.
Call the SEEWIN team before ordering if the bathroom conditions are unclear.
12-inch rough-inMeasure from the finished wall—not the baseboard—to the drain center.
110V protected outletUse an appropriately located grounded, GFCI-protected receptacle.
Household water pressureRequired operating range: 0.14–0.75 MPa.
Physical clearanceConfirm the full 26 3/4 × 16 5/16 × 19 in footprint.
Hannover CH1-G FAQ
Will it flush during a power outage?
Yes. This model includes a power-outage flushing function.
Does it automatically open both the lid and seat?
Yes. It supports automatic lid and seat opening, plus foot-sensor and remote-control operation.
What certifications does this model have?
Hannover CH1-G is UL certified for applicable electrical safety requirements and cUPC certified for plumbing compliance.
Can SEEWIN help confirm installation requirements?
Yes. Call the Plano support team at 214-868-2666 for help reviewing rough-in, electrical, water-pressure and clearance requirements.
Confidence after checkout
More than a smart toilet. A support system.
SEEWIN smart toilets are backed by a U.S.-based team, locally stocked common parts and a three-year limited warranty, with an optional upgrade to five years for $200.
01
3-year warranty
Three years of limited coverage are included. Damage caused by external force, misuse, impact or other physical damage is excluded. For other covered issues, SEEWIN provides repairs and replacement parts at no charge during the warranty period. Upgrade the total coverage period to five years for an additional $200.
02
Installation guidance
Confirm rough-in, outlet, water connection, pressure and clearance before your toilet arrives.
03
Replacement parts
Common components are stocked in Plano, Texas, with real technical support during business hours.
Ready to bring smart comfort home?
SEEWIN Hannover CH1-G Square Smart Bidet Toilet – White
3-year warranty · Upgrade to 5 years for $200 · U.S.-based support · Questions? Call 214-868-2666.