ELPA Wireless Chime Door Opening/Closing Sensor Set EWS-S5034 1 piece

Catalog number: EWS-S5034 Features: ●Up to 8 transmitters can be set. ●20 types of chime sounds are available. ●When the door is opened, a radio wave is transmitted and the chime on the receiver notifies you. Applications: ●For notifying visitors to offices and stores. Specifications: Power supply: Receiver 3 AA batteries (sold separately) or DC4.5V Center plus compatible plug: Outer diameter Φ5.5mm Inner diameter Φ2.1mm (when using AC adapter sold separately) Door sensor transmitter 1 coin type lithium battery 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): 38 x 9 x 93 Type: Door opening and closing sensor Power supply (V): Receiver 3 AA batteries (sold separately) or DC4.5V Center plus compatible plug: Outer diameter Φ5.5mm Inner diameter Φ2.1mm (when using AC adapter sold separately) Door sensor transmitter 1 coin type lithium battery CR2032 (sold separately) Power supply (V): Receiver 3 AA batteries (sold separately) or DC4.5V Center plus compatible plug: outer diameter Φ5.5mm, inner diameter Φ2.1mm (when using separately sold AC adapter) Door sensor transmitter Coin type lithium battery x 1 CR2032 (sold separately) ● Battery life: Receiver approximately 1 year (used 10 times a day, volume 4, ping pong treble, sound only) * When using alkaline batteries Push button transmitter Approximately 2 years (used 10 times a day) ● Volume (cm): Approximately 88dB/50 ● Radio wave reach (m): Line of sight approximately 120 ● Frequency: 313.625MHz (specific low power device) ● ID code: Approximately 250,000 ways ● Operating temperature range: 0℃ to 40℃ Set contents/accessories: ● Receiver x 1, transmitter x 1 ● Mounting screws x 2 (φ3×20mm) ● Double-sided tape, large and small, 1 piece each Caution: ● Radio waves may not reach the receiver easily when used in buildings made of reinforced concrete or steel frames, on different floors, or in places separated by walls.