Our In-Line series of preamplifiers are small (approximately 1” x 1” x 2.2”), low-cost devices that are well-suited for applications where there is a known, specific preamplifier requirement. They have a fixed gain, fixed frequency bandwidth, and a specific sensor input connection (single or differential), which are specified at the time of purchase. The IL40S-HT is a variant for single-ended sensors with a fixed gain of 40 dB, which has been designed to operate in high temperature environments. It is capable of withstanding temperatures of up to 125 degrees C (257 degrees F).