ELPA Wireless Chime Push Button Set EWS-S5030 1 piece

Catalog number: EWS-S5030 Features: ●Up to 8 transmitters can be set. ●20 types of chime sounds. ●The push button is a weatherproof type that lights up the LED when it gets dark, making it easy to find the button's location. Applications: ●For notifying visitors to offices and stores. Specifications: Width (mm): 142 (handset) / 40 (push button) Depth (mm): 29 (handset) / 19 (push button) Height (mm): 80 (handset) / 91 (push button) Chime type: push button Power supply: Receiver 3 AA batteries (sold separately) or DC 4.5V center positive Compatible plug: Outer diameter Φ5.5mm Inner diameter Φ2.1mm (when using AC adapter sold separately) Push button transmitter 2 coin type lithium batteries CR2032 (sold separately) Volume (dB): 88 Detection distance (m): 120 Receiver width x depth x height (mm): 142 x 29 x 80 Transmitter width x depth x height (mm): 40 x 19 x 91 Color: white / white Power supply (V): Receiver 3 AA batteries (sold separately) or DC 4.5V center positive Compatible plug: Outer diameter Φ5.5mm, inner diameter Φ2.1mm (when using optional AC adapter) Push button transmitter Coin type lithium battery x 2 CR2032 (sold separately) ● Power supply: Receiver AA battery x 3 (sold separately) or DC 4.5V center positive Compatible plug: Outer diameter Φ5.5mm, inner diameter Φ2.1mm (when using optional AC adapter) Push button transmitter Coin type lithium battery x 2 CR2032 (sold separately) ● Battery life: Receiver Approximately 1 year (used 10 times a day, volume 4, ping pong treble) * When using alkaline batteries Push button transmitter Approximately 2 years (used 10 times a day) * Battery life may be shorter depending on the battery performance and usage conditions. ●Volume: Approximately 88dB/50cm●Radio wave reach: Line of sight approximately 120m●Frequency: 313.625MHz (specific low-power device)●ID code: Approximately 250,000 possibilities●Operating temperature range: 0℃ to 40℃ Set contents/accessories: ●1 receiver, 1 transmitter●4 mounting screws (Φ3×20mm), 1 sheet of double-sided tape Caution: ●Radio waves may not reach the device easily when used in buildings made of reinforced concrete or steel frames, on different floors, or separated by a wall.