Mute Mode except for the alarm mode or door bell mode, setting the mute mode will be also a comforting way during kids’ sleeping time. Up to 62 Rings 62 ringtones for choice, including pop one“you raise me up “,” moves like jagger”and doorbell “dingdong”,” welcome” on stores, etc. Most of the normal tone like an alarm"wo wo wo" or" Dingdong" will last 5s, some will be 10s+ just select the ideal one if necessary. Up to 120 DB loud audible alarm with 5 levels volume, setting with different volume&music to get idea sound reminding. Sensor Range The doorbell transmitter covers 600ft rage, it is far enough to set chimes on backyard or the roof windows in our family. Battery Life 1 sensor can trigger more than 15,000 times,it is far enough for normal usage in our space. Low Battery Reminding The chime sensor led turns red every 3 seconds to indicate a low battery. Pay attention to replace the battery. LED Indicator Led keep flashing while it gets the door sensor signal. make it easy for notice. Notes Doorbell chime only activated within 0.4in.pls keep your mind the gap between the sensor and magnetic stripe should not exceed 0.4in at the door closing Sensor Installation Double sides adhesive&screw mounted for sensor chimes, be note: try not to install on metal, which makes door chime magnetism weaken. door chime kit wireless doorbell door chime kit 3 door chime sensor door chime receiver door chime kit-White Add to Cart Buying Options Add to Cart Add to Cart Add to Cart Buying Options Customer Reviews 3.9 out of 5 stars 303 3.8 out of 5 stars 22 3.9 out of 5 stars 13 3.9 out of 5 stars 67 3.2 out of 5 stars 23 4.0 out of 5 stars 2,147 Price $27.99$27.99 — no data $39.99$39.99 $14.60$14.60 $12.99$12.99 $17.84$17.84 Item type Kit with 2 sensor 2 doorbell kit with 1 sensor 3 sensor kit sensor receiver kit with 1 sensor Pairing Statue Paired Paired need to paire with extra sensor need to paire need to paire Paired Model dw512+d7X2 MY7x2+F58 dw512+d7X3 d7 dw512 dw512+d7 Expandable ✓ ✓ ✓ ✓ ✓ ✓