any bell can use this ? how many program can save this timer because i want to use my school i want to put 3 schedule ring in one day ?

there are 40 events can be programmed

Can 2 bells be hooked up to this? Where can we buy the bells?

Yes, you can hook up two bells as long as you don't exceed 16 Amps threw the switched contacts. There are many resources to find 120-volt bells. Amazon etc.

Can this drive a relay?

You must provide the power to the contract on the relay.

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Superior Electric SW40T Programmable Digital Timer Switch 110V AC 16A Automatic Factory School Bell Control Instrument – 40 Groups

Product ID: 471367731

Details

Brand
Superior
Product Dimensions
3.5"D x 3"W x
Number of settings
40
UPC
099461755772
Manufacturer
Superior

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482.14 DT

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Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Superior
Product Dimensions
3.5"D x 3"W x
Number of settings
40

Description

Superior Electric SW40T Programmable Digital Timer Switch 110V AC 16A Automatic Factory School Bell Control Instrument – 40 Groups

Specifications

Number of settings	40
Item Dimensions D x W x H	3.5"D x 3"W x 1.75"H

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