Can anyone recommend a specific product (e.g. VHB or nano tape) to fix an alarm contact sensor/magnet pair to a metal door? Previous door was uPVC so sensor could be screwed to the frame. Don't want to drill into new metal frame doors so looking for an alternative.
Sensor is light but there is a tamper spring at the back, so fit needs to be secure and reliable to prevent false alarms.
Lots of reviews on Amazon and other forums but would appreciate a personal recommendation. Needs to be very strong and resistant to temperature/humidity changes.
Thanks for any advice