Availability template - is number and greater than 0

Energy
1

Hi,

Is it possible to define an availability template that checks if the sensor is a number and is also greater than zero?

          availability:
            "{{ (states('sensor.emporiavue2_circuit_10_power')|is_number )}}"

Would something like this be correct?

          availability:
            "{{ (states('sensor.emporiavue2_circuit_10_power')|is_number and states('sensor.emporiavue2_circuit_10_power')|float > 0) }}"
2

The Jinja2 template is fine but the YAML needs minor corrections.

Like this:

availability: >
  {{ states('sensor.emporiavue2_circuit_10_power')|is_number and states('sensor.emporiavue2_circuit_10_power')|float > 0 }}

Or like this:

availability: "{{ states('sensor.emporiavue2_circuit_10_power')|is_number and states('sensor.emporiavue2_circuit_10_power')|float > 0 }}"

Reference:

Important template rules

NOTE

For improved legibility, you may wish to consider doing this:

availability: >
  {% set ecp = states('sensor.emporiavue2_circuit_10_power') %}
  {{ ecp|is_number and ecp|float > 0 }}
1 Like
3

You don’t need the is_number test. Just use the float filter with a default of 0. If it is not a number the value will be replaced with zero:

availability:  "{{ states('sensor.emporiavue2_circuit_10_power')|float(0) > 0 }}"
2 Likes
4

Actually I want the sensor to become unavailable if the number is not greater than 0. Wouldn’t it be better to prevent some errors?

5

That’s what my template does.

If the source sensor is unavailable the value is set to zero → template = false → unavailable.

If the source sensor is < 0 → template = false → unavailable.

It prevents all errors you asked for.

1 Like
6

Ok, great info. Thanks!