Pack Size: 10 Indicators Thermax® 5-Level Clock Temperature Labels provide fast, accurate and permanent indication that a surface has exceeded specific temperature thresholds. Each of the five circular cells darkens irreversibly once its rated temperature has been reached, giving a reliable visual record ideal for process monitoring, quality checks, and equipment diagnostics. Key Features Five irreversible temperature cells per clock Permanent colour change – cannot be reset or tampered with Circular design ideal for compact or curved surfaces Self-adhesive backing for quick application Suitable for a wide range of industrial and laboratory uses Supplied in packs of 10 indicators How They Work Each temperature point contains a calibrated heat-sensitive element that melts and migrates at its activation temperature. When exceeded, the cell permanently darkens, leaving a clear visual record that the threshold has been reached. This makes Thermax Clock indicators ideal for audit trails, maintenance, validation testing, and process verification. Technical Specifications Brand SpotSee® Product Family Thermax 5-Level Clock Type Circular irreversible temperature indicator Format 5-level clock strip Activation Cells permanently darken when temperature is exceeded Temperature Units °C and °F Pack Size 10 indicators Size 0.55” diameter (14mm) Adhesive Pressure-sensitive self-adhesive Temperature Options (Ranges 1–8) The following temperature sets are available. Each clock contains all five temperature points listed in its range. Range °C Points °F Points Range 1 40, 43, 46, 49, 54 105, 110, 115, 120, 130 Range 2 60, 65, 71, 77, 82 140, 150, 160, 170, 180 Range 3 88, 93, 99, 104, 110 190, 200, 210, 220, 230 Range 4 116, 121, 127, 132, 138 240, 250, 260, 270, 280 Range 5 143, 149, 154, 160, 166 290, 300, 310, 320, 330 Range 6 171, 177, 182, 188, 193 340, 350, 360, 370, 380 Range 7 199, 204, 210, 216, 224 390, 400, 410, 420, 435 Range 8 232, 241, 249, 254, 260 450, 465, 480, 490, 500 Select the required range from the dropdown above. All indicators are single-use and provide a permanent record of peak temperature exposure. Stock & Availability We stock all standard Thermax Clock ranges. Higher temperature variants may have longer lead times depending on global SpotSee production schedules. All Thermax indicators supplied by Good Life Innovations Ltd are genuine SpotSee® products sourced through authorised channels.
