Thermal Phone Ambient Limits: Review the Whole Inspection Kit

Assess the ambient operating limits of the complete inspection kit separately from the temperatures the thermal camera can measure. A target-measurement range is not permission to expose the handset, charger or accessories to that same environment.

List the conditions for each part of the job

The current P20 Pro thermal specification graphic lists −15°C to 550°C for target temperature measurement. It does not establish −20°C to 55°C as the phone’s ambient operating range. Keep each range labelled in a purchasing record rather than copying one number into several fields.

Review the weakest documented part of the arrangement

Give the supplier the whole kit: phone, case, holder, cables and charging equipment used during the task. Ask which component instructions and conditions apply together. If an item has no relevant documentation, record it as unresolved instead of assuming the handset’s range covers it.

Do not run an improvised chamber or freezer trial, or charge outside documented limits, to compensate for missing specifications. Have the responsible equipment reviewer agree any further evaluation and release decision.

This guide does not verify an ambient range, transition procedure or charging limit for a particular Phonemax setup. Use the measurement-versus-operation range guide and send Phonemax the actual environmental requirement and kit list. No environmental or measurement-range test is reported here.