Humidity indicator cards provide a visual check of relative humidity (RH) inside sealed packaging. Select a card whose marked levels match the product’s moisture sensitivity and the packaging procedure. Use it with a suitable desiccant and inspect the card when the package is opened.

Standard Humidity Indicator Cards

Reversible cards show current humidity: spots change from blue towards pink, with lavender as the reading reference. The range includes multi-level electronics and military packaging cards, plus 8% RH cards for checking the activated condition of stored desiccant.

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JEDEC Electronic Packaging Cards – J-STD-033

MS051015 provides 5/10/15% RH checkpoints and MS051060 provides 5/10/60% RH checkpoints for dry-packed semiconductors and surface-mount devices. The supplied manufacturer sheet identifies J-STD-033A and J-STD-033B respectively; select against the applicable packaging procedure.

Browse JEDEC Electronic Packaging Cards – J-STD-033

Maximum Indicator Cards

Maximum cards retain evidence of prolonged exposure above their marked humidity thresholds. MX345 and MX56789 use non-reversible blue-crystal indications. MXC56789 adds a separate reversible current-humidity scale, allowing earlier exposure and inspection conditions to be distinguished.

Browse Maximum Indicator Cards

The existing TA378-HC-MHI maximum indicator disc remains available below for compatible observation-window housings. For custom configurations or help choosing a card and desiccant combination, contact our technical team.

Showing all 14 results

  • TA378-HC-MHI humidity indicator disc

    TA378-HC-MHI

    Indicator levels:
    Above 55% RH
    Indicator Behaviour:
    Non-reversible
    Indicator Colour Change:
    White to orange, later dark brown
  • AEC826004NE humidity indicator card - supplier illustration

    AEC826004NE Humidity Indicator Card

    Code: AEC826004NE

    Indicator levels:
    10, 20, 30, 40, 50, 60% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • HM-04 humidity indicator card - supplier illustration

    HM-04 SMD-Humitector Humidity Indicator Card

    Code: HM-04

    Indicator levels:
    10, 20, 30, 40% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • Representative image; indicator levels vary by model.

    MS123 Humidity Indicator Card

    Code: MS123

    Indicator levels:
    10, 20, 30% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • Representative image; indicator levels vary by model.

    MS234 Humidity Indicator Card

    Code: MS234

    Indicator levels:
    20, 30, 40% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • MS20003-2 humidity indicator card

    MS20003-2 Humidity Indicator Card

    Code: MS20003-2

    Indicator levels:
    30, 40, 50% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • MS20003-3 humidity indicator card

    MS20003-3 Humidity Indicator Card

    Code: MS20003-3

    Indicator levels:
    30, 40, 50% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • MS26507-1 humidity indicator card

    MS26507-1 Humidity Indicator Card

    Code: MS26507-1

    Indicator levels:
    8% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • MS26507-1S humidity indicator card - supplier illustration

    MS26507-1S Humidity Indicator Card

    Code: MS26507-1S

    Indicator levels:
    8% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • MS051015 humidity indicator card - supplier illustration

    MS051015 JEDEC Electronic Packaging Humidity Indicator Card

    Code: MS051015

    Indicator levels:
    5, 10, 15% RH
    Indicator Behaviour:
    Reversible
    Indicator Colour Change:
    Blue to pink; read at lavender
  • MS051060 humidity indicator card - supplier illustration

    MS051060 JEDEC Electronic Packaging Humidity Indicator Card

    Code: MS051060

    Indicator levels:
    5, 10, 60% RH
    Indicator Behaviour:
    5/10/60% RH humidity indication
    Indicator Colour Change:
    Blue/pink indication; follow the printed spot instructions
  • MX345 humidity indicator card - supplier illustration

    MX345 Maximum Humidity Indicator Card

    Code: MX345

    Indicator levels:
    30, 40, 50% RH
    Indicator Behaviour:
    Non-reversible maximum humidity record
    Indicator Colour Change:
    Blue crystal dissolves to form a large blue spot
  • MX56789 humidity indicator card - supplier illustration

    MX56789 Maximum Humidity Indicator Card

    Code: MX56789

    Indicator levels:
    50, 60, 70, 80, 90% RH
    Indicator Behaviour:
    Non-reversible maximum humidity record
    Indicator Colour Change:
    Blue crystal dissolves to form a large blue spot
  • MXC56789 humidity indicator card - supplier illustration

    MXC56789 Maximum Humidity Indicator Card

    Code: MXC56789

    Indicator levels:
    50, 60, 70, 80, 90% RH
    Indicator Behaviour:
    Non-reversible maximum record plus reversible current humidity indication
    Indicator Colour Change:
    Blue crystal dissolves to form a large blue spot; reversible current-humidity scale