# MeterInterval

> Volume between two consecutive readings of the same meter.

> **MeterInterval** = `object`

Volume between two consecutive readings of the same meter.

## Properties

### end

> **end**: `string`

RFC 3339 instant of r₂.

***

### from\_id

> **from\_id**: `string`

`production[].id` of the first reading (r₁).

***

### meter\_id

> **meter\_id**: `string`

`meters[].id` of both readings.

***

### rollover

> **rollover**: `boolean`

`true` when the register rolled over (r₂ < r₁ with `max_reading`).

***

### start

> **start**: `string`

RFC 3339 instant of r₁.

***

### to\_id

> **to\_id**: `string`

`production[].id` of the second reading (r₂).

***

### volume

> **volume**: `number` \| `null`

Volume in m³. `null` when unknown: r₂ < r₁ and the meter has no
`max_reading`. Never negative.