Contact KHT Instrument: Get a Heat Seal Tester Quote

Request a factory-direct quote for the STH-3, STH-3A, or STH-5 heat seal tester. Describe your packaging material, required standard, and lab volume — we respond within 24 hours.

Call or WhatsApp

Direct line to our heat seal tester sales engineers for instant pricing and technical Q&A.

+86-18853138623 (WhatsApp)

Send an Email

Email us for STH model selection, ASTM F88/F2029 compliance, calibration, or wholesale enquiries.

info@heatsealtester.com

Factory Address

Visit our 4,200 m² instrument manufacturing facility in Shandong, China — pre-shipment inspections welcome.

Shandong Province, China

Request a Quote

We respond within 24 business hours with factory-direct pricing.

Your information is used only to respond to this inquiry and is not shared with third parties.

DOWNLOADS

Heat Seal Tester Spec Sheets

Download the full datasheet for any STH model — specifications, accessories, and certification details.

STH-3 Spec Sheet (PDF)

PDF · ~0.5MB

STH-3A Spec Sheet (PDF)

PDF · ~0.5MB

STH-5 Spec Sheet (PDF)

PDF · ~0.5MB

Or browse models:STH-3 Manual →STH-3A Gradient →STH-5 Touchscreen →

Frequently Asked Questions